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Culinary Poisons, by Fredrick Accum
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Title: A Treatise on Adulterations of Food, and Culinary Poisons
Exhibiting the Fraudulent Sophistications of Bread, Beer,
Wine, Spiritous Liquors, Tea, Coffee, Cream, Confectionery,
Vinegar, Mustard, Pepper, Cheese, Olive Oil, Pickles, and
Other Articles Employed in Domestic Economy
Author: Fredrick Accum
Release Date: August 12, 2006 [EBook #19031]
Language: English
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A
TREATISE
ON
ADULTERATIONS OF FOOD,
_AND CULINARY POISONS_.
EXHIBITING
The Fraudulent Sophistications of
BREAD, BEER, WINE, SPIRITOUS LIQUORS, TEA, COFFEE, CREAM, CONFECTIONERY,
VINEGAR, MUSTARD, PEPPER, CHEESE, OLIVE OIL, PICKLES,
AND OTHER ARTICLES EMPLOYED IN DOMESTIC ECONOMY.
AND
METHODS OF DETECTING THEM.
_By Fredrick Accum_,
OPERATIVE CHEMIST, AND MEMBER OF THE PRINCIPAL ACADEMIES AND SOCIETIES
OF ARTS AND SCIENCES IN EUROPE.
Philadelphia:
PRINTED AND PUBLISHED BY AB'M SMALL
1820.
PREFACE.
This Treatise, as its title expresses, is intended to exhibit easy
methods of detecting the fraudulent adulterations of food, and of other
articles, classed either among the necessaries or luxuries of the table;
and to put the unwary on their guard against the use of such commodities
as are contaminated with substances deleterious to health.
Every person is aware that bread, beer, wine, and other substances
employed in domestic economy, are frequently met with in an adulterated
state: and the late convictions of numerous individuals for
counterfeiting and adulterating tea, coffee, bread, beer, pepper, and
other articles of diet, are still fresh in the memory of the public.
To such perfection of ingenuity has the system of counterfeiting and
adulterating various commodities of life arrived in this country, that
spurious articles are every where to be found in the market, made up so
skilfully, as to elude the discrimination of the most experienced
judges.
But of all possible nefarious traffic and deception, practised by
mercenary dealers, that of adulterating the articles intended for human
food with ingredients deleterious to health, is the most criminal, and,
in the mind of every honest man, must excite feelings of regret and
disgust. Numerous facts are on record, of human food, contaminated with
poisonous ingredients, having been vended to the public; and the annals
of medicine record tragical events ensuing from the use of such food.
The eager and insatiable thirst for gain, is proof against prohibitions
and penalties; and the possible sacrifice of a fellow-creature's life,
is a secondary consideration among unprincipled dealers.
However invidious the office may appear, and however painful the duty
may be, of exposing the names of individuals, who have been convicted of
adulterating food; yet it was necessary, for the verification of my
statement, that cases should be adduced in their support; and I have
carefully avoided citing any, except those which are authenticated in
Parliamentary documents and other public records.
To render this Treatise still more useful, I have also animadverted on
certain material errors, sometimes unconsciously committed through
accident or ignorance, in private families, during the preparation of
various articles of food, and of delicacies for the table.
In stating the experimental proceedings necessary for the detection of
the frauds which it has been my object to expose, I have confined myself
to the task of pointing out such operations only as may be performed by
persons unacquainted with chemical science; and it has been my purpose
to express all necessary rules and instructions in the plainest
language, divested of those recondite terms of science, which would be
out of place in a work intended for general perusal.
The design of the Treatise will be fully answered, if the views here
given should induce a single reader to pursue the object for which it
is published; or if it should tend to impress on the mind of the Public
the magnitude of an evil, which, in many cases, prevails to an extent so
alarming, that we may exclaim with the sons of the Prophet,
"_THERE IS DEATH IN THE POT._"
For the abolition of such nefarious practices, it is the interest of all
classes of the community to co-operate.
FREDRICK ACCUM.
LONDON.
1820.
CONTENTS.
PRELIMINARY OBSERVATIONS ON THE ADULTERATION OF FOOD _Page_ 13
EFFECT OF DIFFERENT KINDS OF WATER EMPLOYED IN DOMESTIC ECONOMY 33
_Characters of Good Water_ 37
_Chemical Constitution of the Waters used in Domestic Economy and
the Arts_ 40
_Rain Water_ 40
_Snow Water_ 41
_Spring Water_ 42
_River Water_ 44
_Substances usually contained in Common Water, and Tests by which
they are detected_ 48
_Method of ascertaining the Quantity of each of the different
Substances usually contained in Common Water_ 54
_Deleterious Effects of keeping Water for Domestic Economy, in
Leaden Reservoirs_ 60
_Method of detecting Lead, when contained in common Water_ 69
ADULTERATION OF WINE 74
_Method of detecting the Deleterious Adulterations of Wine_ 86
_Specific Differences, and Component Parts of Wine_ 89
_Easy process of ascertaining the Quantity of Brandy contained in
various sorts of Wine_ 92
_Tabular View, exhibiting the Per Centage of Brandy or Alcohol
contained in various kinds of Wine and other fermented Liquors_ 94
_Constitution of Home-made Wines_ 96
ADULTERATION OF BREAD 98
_Method of detecting the Presence of Alum in Bread_ 108
_Easy Method of judging of the Goodness of Bread-Corn and
Bread-Flour_ 110
ADULTERATION OF BEER 113
_List of Druggists and Grocers, prosecuted and convicted for
supplying illegal Ingredients to Brewers for Adulterating Beer_ 119
_Porter_ 121
_Strength and Specific Differences of different kinds of Porter_ 125
_List of Publicans prosecuted and convicted for adulterating Beer
with illegal Ingredients, and for mixing Table Beer with their
Strong Beer_ 129
_Illegal Substances used for adulterating Beer_ 131
_Ingredients seized at various Breweries and Brewers' Druggists,
for adulterating Beer_ 136
_List of Brewers prosecuted and convicted for adulterating Strong
Beer with Table Beer_ 143
_Old, or Entire Beer; and New or Mild Beer_ 144
_List of Brewers prosecuted and convicted for receiving and using
illegal Ingredients in their Brewings_ 151
_Method of detecting the Adulteration of Beer_ 158
_Method of ascertaining the Quantity of Spirit contained in Porter,
Ale, &c._ 160
_Per Centage of Alcohol contained in Porter, and other kinds of
Malt Liquors_ 162
COUNTERFEIT TEA-LEAVES 163
_Methods of detecting the Adulterations of Tea-Leaves_ 171
COUNTERFEIT COFFEE 176
ADULTERATION OF BRANDY, RUM, AND GIN 187
_Method of detecting the Adulterations of Brandy, Rum, and Malt
Spirit_ 195
_Method of detecting the Presence of Lead in Spiritous Liquors_ 202
_Method of ascertaining the Quantity of Alcohol contained in
different kinds of Spiritous Liquors_ 203
_Table exhibiting the Per Centage of Alcohol contained in various
kinds of Spiritous Liquors_ 205
POISONOUS CHEESE, _and method of detecting it_ 206
COUNTERFEIT PEPPER, _and Method of detecting it_ 211
_White Pepper, and method of manufacturing it_ 213
POISONOUS CAYENNE PEPPER, _and method of detecting it_ 215
POISONOUS PICKLES, _and method of detecting them_ 217
ADULTERATION OF VINEGAR, _and method of detecting it_ 220
_Distilled Vinegar_ 221
ADULTERATION OF CREAM, _and method of detecting it_ 222
POISONOUS CONFECTIONERY, _and method of detecting it_ 224
POISONOUS CATSUP, _and method of detecting it_ 227
POISONOUS CUSTARDS 231
POISONOUS ANCHOVY SAUCE, _and method of detecting it_ 234
ADULTERATION OF LOZENGES, _and method of detecting them_ 236
POISONOUS OLIVE OIL, _and method of detecting it_ 239
ADULTERATION OF MUSTARD 241
ADULTERATION OF LEMON ACID, _and method of detecting it_ 243
POISONOUS MUSHROOMS 246
_Mushroom catsup_ 250
POISONOUS SODA WATER, _and method of detecting it_ 251
FOOD POISONED BY COPPER VESSELS, _and method of detecting it_ 252
FOOD POISONED BY LEADEN VESSELS, _and method of detecting it_ 257
INDEX 261
A
TREATISE
ON
ADULTERATIONS OF FOOD,
AND
CULINARY POISONS.
PRELIMINARY OBSERVATIONS.
Of all the frauds practised by mercenary dealers, there is none more
reprehensible, and at the same time more prevalent, than the
sophistication of the various articles of food.
This unprincipled and nefarious practice, increasing in degree as it has
been found difficult of detection, is now applied to almost every
commodity which can be classed among either the necessaries or the
luxuries of life, and is carried on to a most alarming extent in every
part of the United Kingdom.
It has been pursued by men, who, from the magnitude and apparent
respectability of their concerns, would be the least obnoxious to public
suspicion; and their successful example has called forth, from among the
retail dealers, a multitude of competitors in the same iniquitous
course.
To such perfection of ingenuity has this system of adulterating food
arrived, that spurious articles of various kinds are every where to be
found, made up so skilfully as to baffle the discrimination of the most
experienced judges.
Among the number of substances used in domestic economy which are now
very generally found sophisticated, may be distinguished--tea, coffee,
bread, beer, wine, spiritous liquors, salad oil, pepper, vinegar,
mustard, cream, and other articles of subsistence.
Indeed, it would be difficult to mention a single article of food which
is not to be met with in an adulterated state; and there are some
substances which are scarcely ever to be procured genuine.
Some of these spurious compounds are comparatively harmless when used
as food; and as in these cases merely substances of inferior value are
substituted for more costly and genuine ingredients, the sophistication,
though it may affect our purse, does not injure our health. Of this kind
are the manufacture of factitious pepper, the adulterations of mustard,
vinegar, cream, &c. Others, however, are highly deleterious; and to this
class belong the adulterations of beer, wines, spiritous liquors,
pickles, salad oil, and many others.
There are particular chemists who make it a regular trade to supply
drugs or nefarious preparations to the unprincipled brewer of porter or
ale; others perform the same office to the wine and spirit merchant; and
others again to the grocer and the oilman. The operators carry on their
processes chiefly in secresy, and under some delusive firm, with the
ostensible denotements of a fair and lawful establishment.
These illicit pursuits have assumed all the order and method of a
regular trade; they may severally claim to be distinguished as an _art
and mystery_; for the workmen employed in them are often wholly ignorant
of the nature of the substances which pass through their hands, and of
the purposes to which they are ultimately applied.
To elude the vigilance of the inquisitive, to defeat the scrutiny of the
revenue officer, and to ensure the secresy of these mysteries, the
processes are very ingeniously divided and subdivided among individual
operators, and the manufacture is purposely carried on in separate
establishments. The task of proportioning the ingredients for use is
assigned to one individual, while the composition and preparation of
them may be said to form a distinct part of the business, and is
entrusted to another workman. Most of the articles are transmitted to
the consumer in a disguised state, or in such a form that their real
nature cannot possibly be detected by the unwary. Thus the extract of
_coculus indicus_, employed by fraudulent manufacturers of malt-liquors
to impart an intoxicating quality to porter or ales, is known in the
market by the name of _black extract_, ostensibly destined for the use
of tanners and dyers. It is obtained by boiling the berries of the
coculus indicus in water, and converting, by a subsequent evaporation,
this decoction into a stiff black tenacious mass, possessing, in a high
degree, the narcotic and intoxicating quality of the poisonous berry
from which it is prepared. Another substance, composed of extract of
quassia and liquorice juice, used by fraudulent brewers to economise
both malt and hops, is technically called _multum_.[1]
The quantities of coculus indicus berries, as well as of black extract,
imported into this country for adulterating malt liquors, are enormous.
It forms a considerable branch of commerce in the hands of a few
brokers: yet, singular as it may seem, no inquiry appears to have been
hitherto made by the officers of the revenue respecting its application.
Many other substances employed in the adulteration of beer, ale, and
spiritous liquors, are in a similar manner intentionally disguised; and
of the persons by whom they are purchased, a great number are totally
unacquainted with their nature or composition.
An extract, said to be innocent, sold in casks, containing from half a
cwt. to five cwt. by the brewers' druggists, under the name of
_bittern_, is composed of calcined sulphate of iron (copperas), extract
of coculus indicus berries, extract of quassia, and Spanish liquorice.
It would be very easy to adduce, in support of these remarks, the
testimony of numerous individuals, by whom I have been professionally
engaged to examine certain mixtures, said to be perfectly innocent,
which are used in very extensive manufactories of the above description.
Indeed, during the long period devoted to the practice of my
profession, I have had abundant reason to be convinced that a vast
number of dealers, of the highest respectability, have vended to their
customers articles absolutely poisonous, which they themselves
considered as harmless, and which they would not have offered for sale,
had they been apprised of the spurious and pernicious nature of the
compounds, and of the purposes to which they were destined.
For instance, I have known cases in which brandy merchants were not
aware that the substance which they frequently purchase under the
delusive name of _flash_, for strengthening and clarifying spiritous
liquors, and which is held out as consisting of burnt sugar and
isinglass only, in the form of an extract, is in reality a compound of
sugar, with extract of capsicum; and that to the acrid and pungent
qualities of the capsicum is to be ascribed the heightened flavour of
brandy and rum, when coloured with the above-mentioned matter.
In other cases the ale-brewer has been supplied with ready-ground
coriander seeds, previously mixed with a portion of _nux vomica_ and
quassia, to give a bitter taste and narcotic property to the beverage.
The retail venders of mustard do not appear to be aware that mustard
seed alone cannot produce, when ground, a powder of so intense and
brilliant a colour as that of the common mustard of commerce. Nor would
the powder of real mustard, when mixed with salt and water, without the
addition of a portion of pulverised capsicum, keep for so long a time as
the mustard usually offered for sale.
Many other instances of unconscious deceptions might be mentioned, which
were practised by persons of upright and honourable minds.
It is a painful reflection, that the division of labour which has been
so instrumental in bringing the manufactures of this country to their
present flourishing state, should have also tended to conceal and
facilitate the fraudulent practices in question; and that from a
correspondent ramification of commerce into a multitude of distinct
branches, particularly in the metropolis and the large towns of the
empire, the traffic in adulterated commodities should find its way
through so many circuitous channels, as to defy the most scrutinising
endeavour to trace it to its source.
It is not less lamentable that the extensive application of chemistry to
the useful purposes of life, should have been perverted into an
auxiliary to this nefarious traffic. But, happily for the science, it
may, without difficulty, be converted into a means of detecting the
abuse; to effect which, very little chemical skill is required; and the
course to be pursued forms the object of the following pages.
The baker asserts that he does not put alum into bread; but he is well
aware that, in purchasing a certain quantity of flour, he must take a
sack of _sharp whites_ (a term given to flour contaminated with a
quantity of alum), without which it would be impossible for him to
produce light, white, and porous bread, from a half-spoiled material.
The wholesale mealman frequently purchases this spurious commodity,
(which forms a separate branch of business in the hands of certain
individuals,) in order to enable himself to sell his decayed and
half-spoiled flour.
Other individuals furnish the baker with alum mixed up with salt, under
the obscure denomination of _stuff_. There are wholesale manufacturing
chemists, whose sole business is to crystallise alum, in such a form as
will adapt this salt to the purpose of being mixed in a crystalline
state with the crystals of common salt, to disguise the character of
the compound. The mixture called _stuff_, is composed of one part of
alum, in minute crystals, and three of common salt. In many other trades
a similar mode of proceeding prevails. Potatoes are soaked in water to
augment their weight.
The practice of sophisticating the necessaries of life, being reduced to
systematic regularity, is ranked by public opinion among other
mercantile pursuits; and is not only regarded with less disgust than
formerly, but is almost generally esteemed as a justifiable way to
wealth.
It is really astonishing that the penal law is not more effectually
enforced against practices so inimical to the public welfare. The man
who robs a fellow subject of a few shillings on the high-way, is
sentenced to death; while he who distributes a slow poison to a whole
community, escapes unpunished.
It has been urged by some, that, under so vast a system of finance as
that of Great Britain, it is expedient that the revenue should be
collected in large amounts; and therefore that the severity of the law
should be relaxed in favour of all mercantile concerns in proportion to
their extent: encouragement must be given to large capitalists; and
where an extensive brewery or distillery yields an important
contribution to the revenue, no strict scrutiny need be adopted in
regard to the quality of the article from which such contribution is
raised, provided the excise do not suffer by the fraud.
But the principles of the constitution afford no sanction to this
preference, and the true interests of the country require that it should
be abolished; for a tax dependent upon deception must be at best
precarious, and must be, sooner or later, diminished by the irresistible
diffusion of knowledge. Sound policy requires that the law should be
impartially enforced in all cases; and if its penalties were extended to
abuses of which it does not now take cognisance, there is no doubt that
the revenue would be abundantly benefited.
Another species of fraud, to which I shall at present but briefly
advert, and which has increased to so alarming an extent, that it loudly
calls for the interference of government, is the adulteration of drugs
and medicines.
Nine-tenths of the most potent drugs and chemical preparations used in
pharmacy, are vended in a sophisticated state by dealers who would be
the last to be suspected. It is well known, that of the article Peruvian
bark, there is a variety of species inferior to the genuine; that too
little discrimination is exercised by the collectors of this precious
medicament; that it is carelessly assorted, and is frequently packed in
green hides; that much of it arrives in Spain in a half-decayed state,
mixed with fragments of other vegetables and various extraneous
substances; and in this state is distributed throughout Europe.
But as if this were not a sufficient deterioration, the public are often
served with a spurious compound of mahogany saw-dust and oak wood,
ground into powder mixed with a proportion of good quinquina, and sold
as genuine bark powder.
Every chemist knows that there are mills constantly at work in this
metropolis, which furnish bark powder at a much cheaper rate than the
substance can be procured for in its natural state. The price of the
best genuine bark, upon an average, is not lower than twelve shillings
the pound; but immense quantities of powder bark are supplied to the
apothecaries at three or four shillings a pound.
It is also notorious that there are manufacturers of spurious rhubarb
powder, ipecacuanha powder,[2] James's powder; and other simple and
compound medicines of great potency, who carry on their diabolical trade
on an amazingly large scale. Indeed, the quantity of medical
preparations thus sophisticated exceeds belief. Cheapness, and not
genuineness and excellence, is the grand desideratum with the
unprincipled dealers in drugs and medicines.
Those who are familiar with chemistry may easily convince themselves of
the existence of the fraud, by subjecting to a chemical examination
either spirits of hartshorn, magnesia, calcined magnesia, calomel, or
any other chemical preparation in general demand.
Spirit of hartshorn is counterfeited by mixing liquid caustic ammonia
with the distilled spirit of hartshorn, to increase the pungency of its
odour, and to enable it to bear an addition of water.
The fraud is detected by adding spirit of wine to the sophisticated
spirit; for, if no considerable coagulation ensues, the adulteration is
proved. It may also be discovered by the hartshorn spirit not producing
a brisk effervescence when mixed with muriatic or nitric acid.
Magnesia usually contains a portion of lime, originating from hard water
being used instead of soft, in the preparation of this medicine.
To ascertain the purity of magnesia, add to a portion of it a little
sulphuric acid, diluted with ten times its bulk of water. If the
magnesia be completely soluble, and the solution remains transparent, it
may be pronounced _pure_; but not otherwise. Or, dissolve a portion of
the magnesia in muriatic acid, and add a solution of sub-carbonate of
ammonia. If any lime be present, it will form a precipitate; whereas
pure magnesia will remain in solution.
Calcined magnesia is seldom met with in a pure state. It may be assayed
by the same tests as the common magnesia. It ought not to effervesce at
all, with dilute sulphuric acid; and, if the magnesia and acid be put
together into one scale of a balance, no diminution of weight should
ensue on mixing them together. Calcined magnesia, however, is very
seldom so pure as to be totally dissolved by diluted sulphuric acid;
for a small insoluble residue generally remains, consisting chiefly of
silicious earth, derived from the alkali employed in the preparation of
it. The solution in sulphuric acid, when largely diluted, ought not to
afford any precipitation by the addition of oxalate of ammonia.
The genuineness of calomel may be ascertained by boiling, for a few
minutes, one part, with 1/32 part of muriate of ammonia in ten parts of
distilled water. When carbonate of potash is added to the filtered
solution, no precipitation will ensue if the calomel be pure.
Indeed, some of the most common and cheap drugs do not escape the
adulterating hand of the unprincipled druggist. Syrup of buckthorn, for
example, instead of being prepared from the juice of buckthorn berries,
(_rhamnus catharticus_,) is made from the fruit of the blackberry
bearing alder, and the dogberry tree. A mixture of the berries of the
buckthorn and blackberry bearing alder, and of the dogberry tree, may be
seen publicly exposed for sale by some of the venders of medicinal
herbs. This abuse may be discovered by opening the berries: those of
buckthorn have almost always four seeds; of the alder, two; and of the
dogberry, only one. Buckthorn berries, bruised on white paper, stain it
of a green colour, which the others do not.
Instead of worm-seed (_artemisia santonica_,) the seeds of tansy are
frequently offered for sale, or a mixture of both.
A great many of the essential oils obtained from the more expensive
spices, are frequently so much adulterated, that it is not easy to meet
with such as are at all fit for use: nor are these adulterations easily
discoverable. The grosser abuses, indeed, may be readily detected. Thus,
if the oil be adulterated with alcohol, it will turn milky on the
addition of water; if with expressed oils, alcohol will dissolve the
volatile, and leave the other behind; if with oil of turpentine, on
dipping a piece of paper in the mixture, and drying it with a gentle
heat, the turpentine will be betrayed by its smell. The more subtile
artists, however, have contrived other methods of sophistication, which
elude all trials. And as all volatile oils agree in the general
properties of solubility in spirit of wine, and volatility in the heat
of boiling water, &c. it is plain that they may be variously mixed with
each other, or the dearer sophisticated with the cheaper, without any
possibility of discovering the abuse by any of the before-mentioned
trials. Perfumers assert that the smell and taste are the only certain
tests of which the nature of the thing will admit. For example, if a
bark should have in every respect the appearance of good cinnamon, and
should be proved indisputably to be the genuine bark of the cinnamon
tree; yet if it want the cinnamon flavour, or has it but in a low
degree, we reject it: and the case is the same with the essential oil of
cinnamon. It is only from use and habit, or comparisons with specimens
of known quality, that we can judge of the goodness, either of the drugs
themselves, or of their oils.
Most of the arrow-root, the fecula of the Maranta arudinacea, sold by
druggists, is a mixture of potatoe starch and arrow-root.
The same system of adulteration extends to articles used in various
trades and manufactures. For instance, linen tape, and various other
household commodities of that kind, instead of being manufactured of
linen thread only, are made up of linen and cotton. Colours for
painting, not only those used by artists, such as ultramarine,[3]
carmine,[4] and lake;[5] Antwerp blue,[6] chrome yellow,[7] and Indian
ink;[8] but also the coarser colours used by the common house-painter
are more or less adulterated. Thus, of the latter kind, white lead[9] is
mixed with carbonate or sulphate of barytes; vermilion[10] with red
lead.
Soap used in house-keeping is frequently adulterated with a
considerable portion of fine white clay, brought from St. Stephens, in
Cornwall. In the manufacture of printing paper, a large quantity of
plaster of Paris is added to the paper stuff, to increase the weight of
the manufactured article. The selvage of cloth is often dyed with a
permanent colour, and artfully stitched to the edge of cloth dyed with a
fugitive dye. The frauds committed in the tanning of skins, and in the
manufacture of cutlery and jewelry, exceed belief.
The object of all unprincipled modern manufacturers seems to be the
sparing of their time and labour as much as possible, and to increase
the quantity of the articles they produce, without much regard to their
quality. The ingenuity and perseverance of self-interest is proof
against prohibitions, and contrives to elude the vigilance of the most
active government.
The eager and insatiable thirst for gain, which seems to be a leading
characteristic of the times, calls into action every human faculty, and
gives an irresistible impulse to the power of invention; and where lucre
becomes the reigning principle, the possible sacrifice of even a fellow
creature's life is a secondary consideration. In reference to the
deterioration of almost all the necessaries and comforts of existence,
it may be justly observed, in a civil as well as a religious sense, that
"_in the midst of life we are in death_."
FOOTNOTES:
[1] _The Times_, May 18, 1818. The King _v._ Richard Bowman. The
defendant was a brewer, living in Wapping-street, Wapping, and was
charged with having in his possession a drug called _multum_, and a
quantity of copperas.
The articles were produced by Thomas Gates, an excise officer, who had,
after a search, found them on the defendant's premises. The Court
sentenced the defendant to pay a fine of 200_l._
The King _v._ Luke Lyons. The defendant is a brewer, and was brought up
under an indictment charging him with having made use of various
deleterious drugs in his brewery, among which were capsicum, copperas,
&c. The defendant was ordered to pay the fines of 20_l._ upon the first
count, 200_l._ upon the third, and 200_l._ upon the seventh count in the
indictment.
The King _v._ Thomas Evans. The charge against this defendant was, that
he had in his possession forty-seven barrels of stale unpalatable beer.
On, the 11th of March, John Wilson, an excise officer, went to the
storehouse, and found forty-seven casks containing forty-three barrels
and a half of sour unwholesome beer. Several samples of the beer were
produced, all of them of a different colour, and filled with sediment. A
fine of 30_l._ was ordered to be paid by the defendant.
[2] Of this root, several varieties are imported. The white sort, which
has no wrinkles, and no perceptible bitterness in taste, and which,
though taken in a large dose, has scarcely any effect at all, after
being pulverised by fraudulent druggists, and mixed with a portion of
emetic tartar, is sold, at a low price, for the powder of genuine
ipecacuanha root.
[3] Genuine ultramarine should become deprived of its colour when thrown
into concentrated nitric acid.
[4] Genuine carmine should be totally soluble in liquid ammonia.
[5] Genuine madder and carmine lakes should be totally soluble by
boiling in a concentrated solution of soda or potash.
[6] Genuine Antwerp blue should not become deprived of its colour when
thrown into liquid chlorine.
[7] Genuine chrome yellow should not effervesce with nitric acid.
[8] The best Indian ink breaks, splintery, with a smooth glossy
fracture, and feels soft, and not gritty, when rubbed against the teeth.
[9] Genuine white lead should be completely soluble in nitric acid, and
the solution should remain transparent when mingled with a solution of
sulphate of soda.
[10] Genuine vermilion should become totally volatilised on being
exposed to a red heat; and it should not impart a red colour to spirit
of wine, when digested with it.
REMARKS
ON THE
Effect of different Kinds of Waters
IN THEIR APPLICATION TO
DOMESTIC ECONOMY AND THE ARTS;
AND
METHODS OF ASCERTAINING THEIR PURITY.
It requires not much reflection to become convinced that the waters
which issue from the recesses of the earth, and form springs, wells,
rivers, or lakes, often materially differ from each other in their taste
and other obvious properties. There are few people who have not observed
a difference in the waters used for domestic purposes and in the arts;
and the distinctions of _hard_ and _soft_ water are familiar to every
body.
Water perfectly pure is scarcely ever met with in nature.
It must also be obvious, that the health and comfort of families, and
the conveniences of domestic life, are materially affected by the supply
of good and wholesome water. Hence a knowledge of the quality and
salubrity of the different kinds of waters employed in the common
concerns of life, on account of the abundant daily use we make of them
in the preparation of food, is unquestionably an object of considerable
importance, and demands our attention.
The effects produced by the foreign matters which water may contain, are
more considerable, and of greater importance, than might at first be
imagined. It cannot be denied, that such waters as are _hard_, or loaded
with earthy matter, have a decided effect upon some important functions
of the human body. They increase the distressing symptoms under which
those persons labour who are afflicted with what is commonly called
gravel complaints; and many other ailments might be named, that are
always aggravated by the use of waters abounding in saline and earthy
substances.
The purity of the waters employed in some of the arts and manufactures,
is an object of not less consequence. In the process of brewing malt
liquors, soft water is preferable to hard. Every brewer knows that the
largest possible quantity of the extractive matter of the malt is
obtained in the least possible time, and at the smallest cost, by means
of soft water.
In the art of the dyer, hard water not only opposes the solution of
several dye stuffs, but it also alters the natural tints of some
delicate colours; whilst in others again it precipitates the earthy and
saline matters with which it is impregnated, into the delicate fibres of
the stuff, and thus impedes the softness and brilliancy of the dye.
The bleacher cannot use with advantage waters impregnated with earthy
salts; and a minute portion of iron imparts to the cloth a yellowish
hue.
To the manufacturer of painters' colours, water as pure as possible is
absolutely essential for the successful preparation of several delicate
pigments. Carmine, madder lake, ultramarine, and Indian yellow, cannot
be prepared without perfectly pure water.
For the steeping or raiting of flax, soft water is absolutely necessary;
in hard water the flax may be immersed for months, till its texture be
injured, and still the ligneous matter will not be decomposed, and the
fibres properly separated.
In the culinary art, the effects of water more or less pure are
likewise obvious. Good and pure water softens the fibres of animal and
vegetable matters more readily than such as is called _hard_. Every cook
knows that dry or ripe pease, and other farinaceous seeds, cannot
_readily_ be boiled soft in hard water; because the farina of the seed
is not perfectly soluble in water loaded with earthy salts.
Green esculent vegetable substances are more tender when boiled in soft
water than in hard water; although hard water imparts to them a better
colour. The effects of hard and soft water may be easily shown in the
following manner.
EXPERIMENT.
Let two separate portions of tea-leaves be macerated, by precisely the
same processes, in circumstances all alike, in similar and separate
vessels, the one containing hard and the other soft water, either hot or
cold, the infusion made with the soft water will have by far the
strongest taste, although it possesses less colour than the infusion
made with the hard water. It will strike a more intense black with a
solution of sulphate of iron, and afford a more abundant precipitate,
with a solution of animal jelly, which at once shews that soft water has
extracted more tanning matter, and more gallic acid, from the
tea-leaves, than could be obtained from them under like circumstances by
means of hard water.
Many animals which are accustomed to drink soft water, refuse hard
water. Horses in particular prefer the former. Pigeons refuse hard water
when they have been accustomed to soft water.
CHARACTERS OF GOOD WATER.
A good criterion of the purity of water fit for domestic purposes, is
its softness. This quality is at once obvious by the touch, if we only
wash our hands in it with soap. Good water should be beautifully
transparent; a slight opacity indicates extraneous matter. To judge of
the perfect transparency of water, a quantity of it should be put into a
deep glass vessel, the larger the better, so that we can look down
perpendicularly into a considerable mass of the fluid; we may then
readily discover the slightest degree of muddiness much better than if
the water be viewed through the glass placed between the eye and the
light. It should be perfectly colourless, devoid of odour, and its
taste soft and agreeable. It should send out air-bubbles when poured
from one vessel into another; it should boil pulse soft, and form with
soap an uniform opaline fluid, which does not separate after standing
for several hours.
It is to the presence of common air and carbonic acid gas that common
water owes its taste, and many of the good effects which it produces on
animals and vegetables. Spring water, which contains more air, has a
more lively taste than river water.
Hence the insipid or vapid taste of newly boiled water, from which these
gases are expelled: fish cannot live in water deprived of those elastic
fluids.
100 cubic inches of the New River water, with which part of this
metropolis is supplied, contains 2,25 of carbonic acid, and 1,25 of
common air. The water of the river Thames contains rather a larger
quantity of common air, and a smaller portion of carbonic acid.
If water not fully saturated with common air be agitated with this
elastic fluid, a portion of the air is absorbed; but the two chief
constituent gases of the atmosphere, the oxygen and nitrogen, are not
equally affected, the former being absorbed in preference to the latter.
According to Mr. Dalton, in agitating water with atmospheric air,
consisting of 79 of nitrogen, and 21 of oxygen, the water absorbs 1/64
of 79/100 nitrogen gas = 1,234, and 1/27 of 21/100 oxygen gas = 778,
amounting in all to 2,012.
Water is freed from foreign matter by distillation: and for any chemical
process in which accuracy is requisite, distilled water must be used.
Hard waters may, in general, be cured in part, by dropping into them a
solution of sub-carbonate of potash; or, if the hardness be owing only
to the presence of super-carbonate of lime, mere boiling will greatly
remedy the defect; part of the carbonic acid flies off, and a neutral
carbonate of lime falls down to the bottom; it may then be used for
washing, scarcely curdling soap. But if the hardness be owing in part to
sulphate of lime, boiling does not soften it at all.
When spring water is used for washing, it is advantageous to leave it
for some time exposed to the open air in a reservoir with a large
surface. Part of the carbonic acid becomes thus dissipated, and part of
the carbonate of lime falls to the bottom. Mr. Dalton[11] has observed
that the more any spring is drawn from, the softer the water becomes.
CHEMICAL CONSTITUTION OF THE WATERS USED IN DOMESTIC ECONOMY AND THE
ARTS.
_Rain Water_,
Collected with every precaution as it descends from the clouds, and at a
distance from large towns, or any other object capable of impregnating
the atmosphere with foreign matters, approaches more nearly to a state
of purity than perhaps any other natural water. Even collected under
these circumstances, however, it invariably contains a portion of common
air and carbonic acid gas. The specific gravity of rain water scarcely
differs from that of distilled water; and from the minute portions of
the foreign ingredients which it generally contains, it is very _soft_,
and admirably adapted for many culinary purposes, and various processes
in different manufactures and the arts.
Fresh-fallen _snow_, melted without the contact of air, appears to be
nearly free from air. Gay-Lussac and Humboldt, however, affirm, that it
contains nearly the usual proportion of air.
Water from melted _ice_ does not contain so much air. _Dew_ has been
supposed to be saturated with air.
Snow water has long laid under the imputation of occasioning those
strumous swellings in the neck which deform the inhabitants of many of
the Alpine vallies; but this opinion is not supported by any
well-authenticated indisputable facts, and is rendered still more
improbable, if not entirely overturned, by the frequency of the disease
in Sumatra[12], where ice and snow are never seen.
In high northern latitudes, thawed snow forms the constant drink of the
inhabitants during winter; and the vast masses of ice which float on the
polar seas, afford an abundant supply of fresh water to the mariner.
_Spring Water_,
Includes well-water and all others that arise from some depth below the
surface of the earth, and which are used at the fountain-head, or at
least before they have run any considerable distance exposed to the air.
Indeed, springs may be considered as rain water which has passed through
the fissures of the earth, and, having accumulated at the bottom of
declivities, rises again to the surface forming springs and wells. As
wells take their origin at some depth from the surface, and below the
influence of the external atmosphere, their temperature is in general
pretty uniform during every vicissitude of season, and always several
degrees lower than the atmosphere. They differ from one another
according to the nature of the strata through which they issue; for
though the ingredients usually existing in them are in such minute
quantities as to impart to the water no striking properties, and do not
render it unfit for common purposes, yet they modify its nature very
considerably. Hence the water of some springs is said to be _hard_, of
others _soft_, some _sweet_, others _brackish_, according to the nature
and degree of the inpregnating ingredients.
Common springs are insensibly changed into mineral or medicinal springs,
as their foreign contents become larger or more unusual; or, in some
instances, they derive medicinal celebrity from the absence of those
ingredients usually occurring in spring-water; as, for example, is the
case with the Malvern spring, which is nearly pure water.
Almost all spring-waters possess the property termed _hardness_ in a
greater or less degree; a property which depends chiefly upon the
presence of super-carbonate, or of sulphate of lime, or of both; and the
quantity of these earthy salts varies very considerably in different
instances. Mr. Dalton[13] has shewn that one grain of sulphate of lime,
contained in 2000 grains of water, converts it into the hardest spring
water that is commonly met with.
The waters of deep wells are usually much harder than those of springs
which overflow the mouth of the well; but there are some exceptions to
this rule.
The purest springs are those which occur in primitive rocks, or beds of
gravel, or filter through sand or silicious strata. In general, large
springs are purer than small ones: and our old wells contain finer water
than those that are new, as the soluble parts through which the water
filters in channels under ground become gradually washed away.
_River Water_,
Is a term applied to every running stream or rivulet exposed to the air,
and always flowing in an open channel. It is formed of spring water,
which, by exposure, becomes more pure, and of running land or surface
water, which, although turbid from particles of the alluvial soil
suspended in it, is otherwise very pure. It is purest when it runs over
a gravelly or rocky bed, and when its course is swift. It is generally
soft, and more free from earthy salts than spring water; but it usually
contains less common air and carbonic acid gas; for, by the agitation of
a long current, and exposed to the temperature of the atmosphere, part
of its carbonic acid gas is disengaged, and the lime held in solution by
it is in part precipitated, the loss of which contributes to the
softness of the water. Its specific gravity thereby becomes less, the
taste not so harsh, but less fresh and agreeable; and out of a hard
spring is often made a stream of sufficient purity for most of the
purposes where a soft water is required.
The water called in this metropolis _New River Water_, contains a minute
portion of muriate of lime, carbonate of lime, and muriate of soda.
Some streams, however, that arise from clean silicious beds, and flow in
a sandy or stony channel, are from the outset remarkably pure; such as
the mountain lakes and rivulets in the rocky districts of Wales, the
source of the beautiful waters of the Dee, and numberless other rivers
that flow through the hollow of every valley. Switzerland has long been
celebrated for the purity and excellence of its waters, which pour in
copious streams from the mountains, and give rise to the finest rivers
in Europe.
Some rivers, however, that do not take their rise from a rocky soil, and
are indeed at first considerably charged with foreign matter, during a
long course, even over a richly cultivated plain, become remarkably pure
as to saline contents; but often fouled with mud containing much animal
and vegetable matter, which are rather suspended than held in true
solution. Such is the water of the river Thames, which, taken up at
London at low water mark, is very soft and good; and, after rest, it
contains but a very small portion of any thing that could prove
pernicious, or impede any manufacture. It is also excellently fitted for
sea-store; but it then undergoes a remarkable spontaneous change, when
preserved in wooden casks. No water carried to sea becomes putrid sooner
than that of the Thames. But the mode now adopted in the navy of
substituting iron tanks for wooden casks, tends greatly to obviate this
disadvantage.
Whoever will consider the situation of the Thames, and the immense
population along its banks for so many miles, must at once perceive the
prodigious accumulation of animal matters of all kinds, which by means
of the common sewers constantly make their way into it. These matters
are, no doubt, in part the cause of the putrefaction which it is well
known to undergo at sea, and of the carburetted and sulphuretted
hydrogen gases which are evolved from it. When a wooden cask is opened,
after being kept a month or two, a quantity of carburetted and
sulphuretted hydrogen escapes, and the water is so black and offensive
as scarcely to be borne. Upon racking it off, however, into large
earthen vessels, and exposing it to the air, it gradually deposits a
quantity of black slimy mud, becomes clear as crystal, and remarkably
sweet and palatable.
It might, at first sight, be expected that the water of the Thames,
after having received all the contents of the sewers, drains, and water
courses, of a large town, should acquire thereby such impregnation with
foreign matters, as to become very impure; but it appears, from the most
accurate experiments that have been made, that those kinds of impurities
have no perceptible influence on the salubrious quality of a mass of
water so immense, and constantly kept in motion by the action of the
tides.
Some traces of animal matter may, however, be detected in the water of
the Thames; for if nitrate of lead be dropped into it,[14] "you will
find that it becomes milky, and that a white powder falls to the bottom,
which dissolves without effervescence in nitric acid. It is, therefore,
(says Dr. Thomson) a combination of oxide of lead with some animal
matter."
SUBSTANCES USUALLY CONTAINED IN COMMON WATER, AND TESTS BY WHICH THEY
ARE DETECTED.
To acquire a knowledge of the general nature of common water, it is only
necessary to add to it a few chemical tests, which will quickly indicate
the presence or absence of the substances that may be expected.
Almost the only salts contained in common waters are the carbonates,
sulphates, and muriates of soda, lime, and magnesia; and sometimes a
very minute portion of iron may also be detected in them.
EXPERIMENT.
Fill a wine-glass with distilled water, and add to it a few drops of a
solution of soap in alcohol, the water will remain transparent.
This test is employed for ascertaining the presence of earthy salts in
waters. Hence it produces no change when mingled with distilled or
perfectly pure water; but when added to water containing earthy salts, a
white flocculent matter becomes separated, which speedily collects on
the surface of the fluid. Now, from the quantity of flocculent matter
produced, in equal quantities of water submitted to the test, a
tolerable notion may be formed of the degrees of hardness of different
kinds of water, at least so far as regards the fitness of the water for
the ordinary purposes of domestic economy. This may be rendered obvious
in the following manner.
EXPERIMENT.
Fill a number of wine-glasses with different kinds of pump or well
water, and let fall into each glass a few drops of the solution of soap
in alcohol. A turbidness will instantly ensue, and a flocculent matter
collect on the surface of the fluid, if the mixture be left undisturbed.
The quantity of flocculent matter will be in the ratio of the quantity
of earthy salts contained in the water.
It is obvious that the action of this test is not discriminative, with
regard to the chemical nature of the earthy salt present in the water.
It serves only to indicate the _presence_ or _absence_ of those kinds of
substances which occasion that quality in water which is usually called
_hardness_, and which is always owing to salts with an earthy base.
If we wish to know the nature of the different acids and earths
contained in the water, the following test may be employed.[15]
EXPERIMENT.
Add about twenty drops of a solution of oxalate of ammonia, to half a
wine-glass of the water; if a white precipitate ensues, we conclude that
the water contains lime.
By means of this test, one grain of lime may be detected in 24,250 of
water.
If this test occasion a white precipitate in water taken fresh from the
pump or spring, and not after the water has been boiled and suffered to
grow cold, the lime is dissolved in the water by an excess of carbonic
acid; and if it continues to produce a precipitate in the water which
has been concentrated by boiling, we then are sure that the lime is
combined with a fixed acid.
EXPERIMENT.
To detect the presence of iron, add to a wine-glassful of the water a
few drops of an infusion of nut-galls; or better, suffer a nut-gall to
be suspended in it for twenty-four hours, which will cause the water to
acquire a blueish black colour, if iron be present.
EXPERIMENT.
Add a few grains of muriate of barytes, to half a wine-glass of the
water to be examined; if it produces a turbidness which does not
disappear by the admixture of a few drops of muriatic acid, the presence
of sulphuric acid is rendered obvious.
EXPERIMENT.
If a few drops of a solution of nitrate of silver occasions a milkiness
with the water, which vanishes again by the copious addition of liquid
ammonia, we have reason to believe that the water contains a salt, one
of the constituent parts of which is muriatic acid.
EXPERIMENT.
If lime water or barytic water occasions a precipitate which again
vanishes by the admixture of muriatic acid, then carbonic acid is
present in the water.
EXPERIMENT.
If a solution of phosphate of soda produces a milkiness with the water,
after a previous addition to it of a similar quantity of neutral
carbonate of ammonia, we may then expect magnesia. The application of
this test is best made in the following manner:
Concentrate a quantity of the water to be examined to about 1/20 part of
its bulk, and drop into about half a wine-glassful, about five grains of
neutral carbonate of ammonia. No magnesia becomes yet precipitated if
this earth be present; but on adding a like quantity of phosphate of
soda, the magnesia falls down, as an insoluble salt. It is essential
that the carbonate of ammonia be neutral.
This test was first pointed out by Dr. Wollaston.
The presence of oxygen gas loosely combined in water may readily be
discovered in the following manner.
EXPERIMENT.
Fill a vial with water, and add to it a small quantity of green sulphate
of iron. If the water be entirely free of oxygen, and if the vessel be
well stopped and completely filled, the solution is transparent; but if
otherwise, it soon becomes slightly turbid, from the oxide of iron
attracting the oxygen, and a small portion of it, in this more highly
oxidated state, leaving the acid and being precipitated. Or, according
to a method pointed out by Driessen, the water is to be boiled for two
hours in a flask filled with it, and immersed in a vessel of water kept
boiling, with the mouth of the flask under the surface of the water: it
is to be inverted in quicksilver, taking care that no air-bubble adheres
to the side of the flask, and being tinged with infusion of litmus, a
little nitrous gas is to be introduced: if the oxygen gas has been
sufficiently expelled from the water, the purple colour of the litmus
does not change; while, if oxygen be present, it immediately becomes
red.[16]
If we examine the different waters which are used for the ordinary
purposes of life, and judge of them by the above tests, we shall find
them to differ considerably from each other. Some contain a large
quantity of saline and earthy matters, whilst others are nearly pure.
The differences are produced by the great solvent power which water
exercises upon most substances. Wells should never be lined with bricks,
which render soft water hard; or, if bricks be employed, they should be
bedded in and covered with cement.
METHOD OF ASCERTAINING THE RELATIVE QUANTITY OF EACH OF THE DIFFERENT
SUBSTANCES USUALLY CONTAINED IN COMMON WATER.
To ascertain the quantity of earthy and saline matter contained in
water, the following is the most simple and easy method.
EXPERIMENT.
Put any measured quantity of the water into a platina, or silver
evaporating basin, the weight of which is known, and evaporate the water
upon a steam bath, at a temperature of about 180°, nearly to dryness;
and, lastly, remove the basin to a sand bath, and let the mass be
evaporated to perfect dryness. The weight of the platina basin being
already known, we have only to weigh it carefully. When the solid saline
contents of the water is attached to it, the increase of weight gives
the quantity of solid matter contained in a given quantity of the water.
EXPERIMENT.
Pour upon the saline contents a quantity of distilled water equal to
that in which the obtained salts were originally dissolved. If the whole
saline matter become dissolved in this water, there is reason to believe
that the saline matter has not been altered during the evaporation of
the water. But if a portion remain undissolved, as is usually the case,
then we may conclude that some of the salts have mutually decomposed
each other, when brought into a concentrated state by the evaporation,
and that salts have been formed which did not originally exist in the
water before its evaporation.
We have already mentioned that almost the only salts contained in common
waters, are the carbonates, sulphates, and muriates, of soda, lime, and
magnesia; and sometimes a very minute portion of iron. Having determined
the different acids and bases present, in the manner stated at p. 49, we
may easily ascertain the relative weight of each.
The following formula suggested by Dr. Murray,[17] is fully as accurate
a means of analysing waters as any other, and it is easy of execution.
The weight of the saline ingredients of a given quantity of water being
determined, we may proceed to the accurate analysis of it in the
following manner.
EXPERIMENT.
Measure out a determinate volume of the water (as 500 or 1000 cubic
inches,) and evaporate it gradually, in an unglazed open vessel defended
from dust, to one third of its original bulk; then divide this
evaporated liquid into three equal portions.
EXPERIMENT.
Drop into the first portion, muriate of barytes; wash the precipitate,
collect it, dry it at a red heat upon platina foil, and weigh it; digest
it in nitric acid, dry it, and weigh it again. The loss of weight
indicates the quantity of carbonate of barytes which the precipitate
contained. The residual weight is sulphate of barytes; the carbonic acid
in the water is equivalent to 0,22 of the weight of the carbonate of
barytes; the sulphuric acid to 0,339 of the weight of the sulphate of
barytes.
EXPERIMENT.
Precipitate the second portion of the concentrated water, by the
addition of nitrate of silver; wash the precipitate, dry it, and fuse it
on a piece of foil platina, previously weighed. By weighing the foil
containing the fused chloride of silver, the weight of the precipitate
may be ascertained. The fourth part of this weight is equivalent to the
weight of the muriatic acid contained in the portion of water
precipitated.
EXPERIMENT.
Precipitate the third portion of the water by the addition of oxalate of
ammonia; wash and dry the precipitate; expose it to a red heat, on a
platina foil, or in a capsule of platina; pour on it some dilute
sulphuric acid; digest for some time, then evaporate to dryness, expose
the capsule to a pretty strong heat, and, lastly, weigh the sulphate of
lime thus produced: 0.453 of its weight indicate the quantity of lime in
the portion of water precipitated.
EXPERIMENT.
Add to the same third portion of the water thus freed from lime, a
portion of a solution of neutral carbonate of ammonia, and then add
phosphoric acid, drop by drop, as long as any precipitate falls down.
Wash the precipitate, dry it, and expose it to a red heat in a platina
capsule: it is phosphate of magnesia. 0.357 of the weight of this salt
is equivalent to the weight of the magnesia contained in the water.
EXPERIMENT.
If the water contain a minute portion of iron, a quantity of it equal to
one of the three preceding portions, must be taken and mixed with a
solution of benzoate of ammonia. The precipitate being washed, dried,
and exposed to a red heat, and weighed, nine-tenths of its weight
indicate the weight of protoxide of iron contained in the water.
In this manner the quantity of all the substances contained in the water
will be ascertained, except there be any soda. To know the amount of it,
the following method, pointed out by Dr. Murray, answers very well.
EXPERIMENT.
Evaporate a portion of the water to one third of its bulk. Precipitate
the carbonic and sulphuric acids by the addition of muriate of barytes,
taking care not to add any excess of the tests.
Precipitate the lime by oxalate of ammonia, and the magnesia by
carbonate of ammonia and phosphoric acid. (Page 52.) Then evaporate the
liquid thus treated to dryness. A quantity of common salt will remain:
let this be exposed to a red heat; 0.4 of its weight indicate the sodium
contained in the bulk of water employed; and 0.4 sodium are equivalent
to 0.53 of soda.
It seems hardly requisite to mention some other substances that
occasionally make their appearance in the waters used for domestic
purposes. A fine divided sand is a common constituent, which is easily
obtained in a separate state. We have only to evaporate a portion of the
water to dryness, and redissolve the saline residue in distilled water.
The silicious sand remains undissolved, and betrays itself by its
insolubility in acids, and its easy fusibility into a transparant glass,
with soda, before the blow-pipe.
DELETERIOUS EFFECTS OF KEEPING WATER FOR DOMESTIC ECONOMY IN LEADEN
RESERVOIRS.
The deleterious effect of lead, when taken into the stomach, is at
present so universally known, that it is quite unnecessary to adduce
any argument in proof of its dangerous tendency.
The ancients were, upwards of 2000 years ago, as well aware of the
pernicious quality of this metal as we are at the present day; and
indeed they appeared to have been much more apprehensive of its effects,
and scrupulous in the application of it to purposes of domestic economy.
Their precautions may have been occasionally carried to an unnecessary
length. This was the natural consequence of the imperfect state of
experimental knowledge at that period. When men were unable to detect
the poisonous matters--to be over scrupulous in the use of such water,
was an error on the right side.
The moderns, on the other hand, in part, perhaps, from an ill-founded
confidence, and inattention to a careful and continued examination of
its effects, have fallen into an opposite error.
There can be no doubt that the mode of preserving water intended for
food or drink in leaden reservoirs, is exceedingly improper; and
although pure water exercises no sensible action upon metallic lead,
provided air be excluded, the metal is certainly acted on by the water
when air is admitted: this effect is so obvious, that it cannot escape
the notice of the least attentive observer.
The white line which may be seen at the surface of the water preserved
in leaden cisterns, where the metal touches the water and where the air
is admitted, is a carbonate of lead, formed at the expense of the metal.
This substance, when taken into the stomach, is highly deleterious to
health. This was the reason which induced the ancients to condemn leaden
pipes for the conveyance of water; it having been remarked that persons
who swallowed the sediment of such water, became affected with disorders
of the bowels.[18]
Leaden water reservoirs were condemned in ancient times by Hyppocrates,
Galen, and Vitruvius, as dangerous: in addition to which, we may depend
on the observations of Van Swieten, Tronchin, and others, who have
quoted numerous unhappy examples of whole families poisoned by water
which had remained in reservoirs of lead. Dr. Johnston, Dr. Percival,
Sir George Baker, and Dr. Lamb, have likewise recorded numerous
instances where dangerous diseases ensued from the use of water
impregnated with lead.
Different potable waters have unequal solvent powers on this metal. In
some places the use of leaden pumps has been discontinued, from the
expense entailed upon the proprietors by the constant want of repair.
Dr. Lamb[19] states an instance where the proprietor of a well ordered
his plumber to make the lead of a pump of double the thickness of the
metal usually employed for pumps, to save the charge of repairs; because
he had observed that the water was so hard, as he called it, that it
corroded the lead very soon.
The following instance is related by Sir George Baker:[20]
"A gentleman was the father of a numerous offspring, having had
one-and-twenty children, of whom eight died young, and thirteen survived
their parents. During their infancy, and indeed _until they had quitted
the place of their usual residence, they were all remarkably unhealthy_;
being particularly subject to disorders of the stomach and bowels. The
father, during many years, was paralytic; the mother, for a long time,
was subject to colics and bilious obstructions.
"After the death of the parents, the family sold the house which they
had so long inhabited. The purchaser found it necessary to repair the
pump. This was made of lead; which, upon examination was found to be so
corroded, that several perforations were observed in the cylinder, in
which the bucket plays; and the cistern in the upper part was reduced to
the thinness of common brown paper, and was full of holes, like a
sieve."
I have myself seen numerous instances where leaden cisterns have been
completely corroded by the action of water with which they were in
contact: and there is, perhaps, not a plumber who cannot give testimony
of having experienced numerous similar instances in the practice of his
trade.
I have been frequently called upon to examine leaden cisterns, which had
become leaky on account of the action of the water which they contained;
and I could adduce an instance of a legal controversy having taken place
to settle the disputes between the proprietors of an estate and a
plumber, originating from a similar cause--the plumber being accused of
having furnished a faulty reservoir; whereas the case was proved to be
owing to the chemical action of the water on the lead. Water containing
a large quantity of common air and carbonic acid gas, always acts very
sensibly on metallic lead.
Water, which has no sensible action, in its natural state, upon lead,
may acquire the capability of acting on it by heterogeneous matter,
which it may accidentally receive. Numerous instances have shewn that
vegetable matter, such as leaves, falling into leaden cisterns filled
with water, imparted to the water a considerable solvent power of action
on the lead, which, in its natural state it did not possess. Hence the
necessity of keeping leaden cisterns clean; and this is the more
necessary, as their situations expose them to accidental impurities. The
noted saturnine colic of Amsterdam, described by Tronchin, originated
from such a circumstance; as also the case related by Van Swieten,[21]
of a whole family afflicted with the same complaint, from such a
cistern. And it is highly probable that the case of disease recorded by
Dr. Duncan,[22] proceeded more from some foulness in the cistern, than
from the solvent power of the water. In this instance the officers of
the packet boat used water for their drink and cooking out of a leaden
cistern, whilst the sailors used the water taken from the same source,
except that theirs was kept in wooden vessels. The consequence was, that
all the officers were seized with the colic, and all the men continued
healthy.
The carelessness of the bulk of mankind, Dr. Lambe very justly observes,
to these things, "is so great, that to repeat them again and again
cannot be wholly useless."
Although the great majority of persons who daily use water kept in
leaden cisterns receive no sensible injury, yet the apparent salubrity
must be ascribed to the great slowness of its operation, and the
minuteness of the dose taken, the effects of which become modified by
different causes and different constitutions, and according to the
predisposition to diseases inherent in different individuals. The
supposed security of the multitude who use the water with impunity,
amounts to no more than presumption, in favour of any individual, which
may or may not be confirmed by experience.
Independent of the morbid susceptibility of impressions which
distinguish certain habits, there is, besides, much variety in the
original constitution of the human frame, of which we are totally
ignorant.
"The susceptibility or proneness to disease of each individual, must be
esteemed peculiar to himself. Confiding to the experience of others is a
ground of security which may prove fallacious; and the danger can with
certainty be obviated only by avoiding its source. And considering the
various and complicated changes of the human frame, under different
circumstances and at different ages, it is neither impossible nor
improbable that the substances taken into the system at one period, and
even for a series of years, with apparent impunity may, notwithstanding,
at another period, be eventually the occasion of disease and of death.
"The experience of a single person, or of many persons, however
numerous, is quite incompetent to the decision of a question of this
nature.
"The pernicious effects of an intemperate use of spiritous liquors is
not less certain because we often see habitual drunkards enjoy a state
of good health, and arrive at old age: and the same may be said of
individuals who indulge in vices of all kinds, evidently destructive to
life; many of whom, in spite of their bad habits, attain to a vigorous
old age."[23]
In confirmation of these remarks, we adduce the following account of the
effect of water contaminated by lead, given by Sir G. Baker:
"The most remarkable case on the subject that now occurs to my memory,
is that of Lord Ashburnham's family, in Sussex; to which, spring water
was supplied, from a considerable distance, in leaden pipes. In
consequence, his Lordship's servants were every year tormented with
colic, and some of them died. An eminent physician, of Battle, who
corresponded with me on the subject, sent up some gallons of that water,
which were analysed by Dr. Higgins, who reported that the water had
contained more than the common quantity of carbonic acid; and that he
found in it lead in solution, which he attributed to the carbonic acid.
In consequence of this, Lord Ashburnham substituted wooden for leaden
pipes; and from that time his family have had no particular complaints
in their bowels."
_Richmond, Sept. 27, 1802._
METHOD OF DETECTING LEAD, WHEN CONTAINED IN WATER.
One of the most delicate tests for detecting lead, is water impregnated
with sulphuretted hydrogen gas, which instantly imparts to the fluid
containing the minutest quantity of lead, a brown or blackish tinge.
This test is so delicate that distilled water, when condensed by a
leaden pipe in a still tub, is affected by it. To shew the action of
this test, the following experiments will serve.
EXPERIMENT.
Pour into a wine-glass containing distilled water, an equal quantity of
water impregnated with sulphuretted hydrogen gas: no change will take
place; but if a 1/4 of a grain of acetate of lead (sugar of lead of
commerce), or any other preparation of lead, be added, the mixture will
instantly turn brown and dark-coloured.
To apply this test, one part of the suspected water need merely to be
mingled with a like quantity of water impregnated with sulphuretted
hydrogen. Or better, a larger quantity, a gallon for example, of the
water may be concentrated by evaporation to about half a pint, and then
submitted to the action of the test.
Another and more efficient mode of applying this test, is, to pass a
current of sulphuretted hydrogen gas through the suspected water in the
following manner.
EXPERIMENT.
[Illustration]
Take a bottle (_a_) or Florence flask, adapt to the mouth of it a cork
furnished with a glass tube (_b_), bent at right angles; let one leg of
the tube be immersed in the vial (_c_) containing the water to be
examined; as shewn in the following sketch. Then take one part of
sulphuret of antimony of commerce, break it into pieces of half the size
of split pease, put it into the flask, and pour upon it four parts of
common concentrated muriatic acid (spirit of salt of commerce).
Sulphuretted hydrogen gas will become disengaged from the materials in
abundance, and pass through the water in the vial (_c_). Let the
extrication of the gas be continued for about five minutes; and if the
minutest quantity of lead be present, the water will acquire a
dark-brown or blackish tinge. The extrication of the gas is facilitated
by the application of a gentle heat.
The action of the sulphuretted hydrogen test, when applied in this
manner, is astonishingly great; for one part of acetate of lead may be
detected by means of it, in 20000 parts of water.[24]
Another test for readily detecting lead in water, is sulphuretted
chyazate of potash, first pointed out as such by Mr. Porret. A few drops
of this re-agent, added to water containing lead, occasion a white
precipitate, consisting of small brilliant scales of a considerable
lustre.
Sulphate of potash, or sulphate of soda, is likewise a very delicate
test for detecting minute portions of lead. Dr. Thomson[25] discovered,
by means of it, one part of lead in 100000 parts of water; and this
acute Philosopher considers it as the most unequivocal test of lead that
we possess. Dr. Thomson remarks that "no other precipitate can well be
confounded with it, except sulphate of barytes; and there is no
probability of the presence of barytes existing in common water."
Carbonate of potash, or carbonate of soda, may also be used as agents to
detect the presence of lead. By means of these salts Dr. Thomson was
enabled to detect the presence of a smaller quantity of lead in
distilled water, than by the action of sulphuretted hydrogen. But the
reader must here be told, that the use of these tests cannot be
entrusted to an unskilful hand; because the alkaline carbonates throw
down also lime and magnesia, two substances which are frequently found
in common water; the former tests, namely, water impregnated with
sulphuretted hydrogen gas, and nascent sulphuretted hydrogen, are
therefore preferable.
It is absolutely essential that the water impregnated with sulphuretted
hydrogen, when employed as a test for detecting very minute quantities
of lead, be fresh prepared; and if sulphate of potash, or sulphate of
soda, be used as tests, they should be perfectly pure. Sulphate of
potash is preferable to sulphate of soda. It is likewise advisable to
act with these tests upon water concentrated by boiling. The water to
which the test has been added does sometimes appear not to undergo any
change, at first; it is therefore necessary to suffer the mixture to
stand for a few hours; after which time the action of the test will be
more evident. Mr. Silvester[26] has proposed gallic acid as a delicate
test for detecting lead.
FOOTNOTES:
[11] Dalton, Manchester Memoirs, vol. iv. p. 55.
[12] Marsden's History of Sumatra.
[13] Manchester Memoirs vol. x. 1819.
[14] Observations on the Water with which Tunbridge Wells is chiefly
supplied for Domestic Purposes, by Dr. Thomson; forming an Appendix to
an Analysis of the Mineral Waters of Tunbridge Wells, by Dr. Scudamore.
[15] It is absolutely essential that the tests should be pure.
[16] Philosophical Magazine, vol. xv. p. 252.
[17] Transactions of the Royal Society of Edinburgh, vol. viii. p. 259.
[18] Sir G. Baker, Med. Trans. vol. i. p. 280.
[19] Lamb on Spring Water.
[20] Medical Trans. vol. i. p. 420.
[21] Van Swieten ad Boerhaave, Aphorisms, 1060. Comment.
[22] Medical Comment. Dec. 2, 1794.
[23] Lambe on Spring Water.
[24] See An Analysis of the Mineral Waters of Tunbridge Wells, by Dr.
Scudamore, p. 55.
The application of the sulphuretted hydrogen test requires some
precautions in those cases where other metals besides lead may be
expected; because silver, quicksilver, tin, copper, and several other
metals, are affected by it, as well as lead; but there is no chance of
these metals being met with in common water.--See _Chemical Tests_,
third edition, p. 207.
[25] Analysis of Tunbridge Wells Water, by Dr. Scudamore, p. 55.
[26] Nicholson's Journal, p. 33, 310.
_Adulteration of Wine._
It is sufficiently obvious, that few of those commodities, which are the
objects of commerce, are adulterated to a greater extent than wine. All
persons moderately conversant with the subject, are aware, that a
portion of alum is added to young and meagre red wines, for the purpose
of brightening their colour; that Brazil wood, or the husks of
elderberries and bilberries,[27] are employed to impart a deep rich
purple tint to red Port of a pale, faint colour; that gypsum is used to
render cloudy white wines transparent;[28] that an additional
astringency is imparted to immature red wines by means of oak-wood
sawdust,[29] and the husks of filberts; and that a mixture of spoiled
foreign and home-made wines is converted into the wretched compound
frequently sold in this town by the name of _genuine old Port_.
Various expedients are resorted to for the purpose of communicating
particular flavours to insipid wines. Thus a _nutty_ flavour is produced
by bitter almonds; factitious Port wine is flavoured with a tincture
drawn from the seeds of raisins; and the ingredients employed to form
the _bouquet_ of high-flavoured wines, are sweet-brier, oris-root,
clary, cherry laurel water, and elder-flowers.
The flavouring ingredients used by manufacturers, may all be purchased
by those dealers in wine who are initiated in the mysteries of the
trade; and even a manuscript recipe book for preparing them, and the
whole mystery of managing all sorts of wines, may be obtained on payment
of a considerable fee.
The sophistication of wine with substances not absolutely noxious to
health, is carried to an enormous extent in this metropolis. Many
thousand pipes of spoiled cyder are annually brought hither from the
country, for the purpose of being converted into factitious Port wine.
The art of manufacturing spurious wine is a regular trade of great
extent in this metropolis.
"There is, in this city, a certain fraternity of chemical operators, who
work underground in holes, caverns, and dark retirements, to conceal
their mysteries from the eyes and observation of mankind. These
subterraneous philosophers are daily employed in the transmutation of
liquors; and by the power of magical drugs and incantations, raising
under the streets of London the choicest products of the hills and
valleys of France. They can squeeze Bourdeaux out of the sloe, and draw
Champagne from an apple. Virgil, in that remarkable prophecy,
_Incultisque ruhens pendebit sentibus uva._
Virg. Ecl. iv. 29.
The ripening grape shall hang on every thorn.
seems to have hinted at this art, which can turn a plantation of
northern hedges into a vineyard. These adepts are known among one
another by the name of _Wine-brewers_; and, I am afraid, do great
injury, not only to her Majesty's customs, but to the bodies of many of
her good subjects."[30]
The following are a few of the recipes employed in the manufacture of
spurious wine:
To make _British Port Wine_.[31]--"Take of British grape wine, or
good cyder, 4 gallons; of the juice of red beet root two quarts;
brandy, two quarts; logwood 4 ounces; rhatany root, bruised, half a
pound: first infuse the logwood and rhatany root in brandy, and a
gallon of grape wine or cyder for one week; then strain off the
liquor, and mix it with the other ingredients; keep it in a cask
for a month, when it will be fit to bottle."
_British Champagne._--"Take of white sugar, 8 pounds; the whitest
brown sugar, 7 pounds, crystalline lemon acid, or tartaric acid, 1
ounce and a quarter, pure water, 8 gallons; white grape wine, two
quarts, or perry, 4 quarts; of French brandy, 3 pints."
"Put the sugar in the water, skimming it occasionally for two
hours, then pour it into a tub and dissolve in it the acid; before
it is cold, add some yeast and ferment. Put it into a clean cask
and add the other ingredients. The cask is then to be well bunged,
and kept in a cool place for two or three months; then bottle it
and keep it cool for a month longer, when it will be fit for use.
If it should not be perfectly clear after standing in the cask two
or three months, it should be rendered so by the use of isinglass.
By adding 1 lb. of fresh or preserved strawberries, and 2 ounces of
powdered cochineal, the PINK _Champagne may be made_."
_Southampton Port._[32]--"Take cyder, 36 gallons; elder wine, 11
gallons; brandy, 5 gallons; damson wine, 11 gallons; mix."
The particular and separate department in this factitious wine trade,
called _crusting_, consists in lining the interior surface of empty
wine-bottles, in part, with a red crust of super-tartrate of potash, by
suffering a saturated hot solution of this salt, coloured red with a
decoction of Brazil-wood, to crystallize within them; and after this
simulation of maturity is perfected, they are filled with the compound
called Port wine.
Other artisans are regularly employed in staining the lower extremities
of bottle-corks with a fine red colour, to appear, on being drawn, as if
they had been long in contact with the wine.
The preparation of an astringent extract, to produce, from spoiled
home-made and foreign wines, a "genuine old Port," by mere admixture; or
to impart to a weak wine a rough austere taste, a fine colour, and a
peculiar flavour; forms one branch of the business of particular
wine-coopers: while the mellowing and restoring of spoiled white wines,
is the sole occupation of men who are called _refiners of wine_.
We have stated that a crystalline crust is formed on the interior
surface of bottles, for the purpose of misleading the unwary into a
belief that the wine contained in them is of a certain age. A
correspondent operation is performed on the wooden cask; the whole
interior of which is stained artificially with a crystalline crust of
super-tartrate of potash, artfully affixed in a manner precisely similar
to that before stated. Thus the wine-merchant, after bottling off a
pipe of wine, is enabled to impose on the understanding of his
customers, by taking to pieces the cask, and exhibiting the beautiful
dark coloured and fine crystalline crust, as an indubitable proof of the
age of the wine; a practice by no means uncommon, to flatter the vanity
of those who pride themselves in their acute discrimination of wines.
These and many other sophistications, which have long been practised
with impunity, are considered as legitimate by those who pride
themselves for their skill in the art of _managing_, or, according to
the familiar phrase, _doctoring_ wines. The plea alleged in exculpation
of them, is, that, though deceptive, they are harmless: but even
admitting this as a palliation, yet they form only one department of an
art which includes other processes of a tendency absolutely criminal.
Several well-authenticated facts have convinced me that the adulteration
of wine with substances deleterious to health, is certainly practised
oftener than is, perhaps, suspected; and it would be easy to give some
instances of very serious effects having arisen from wines contaminated
with deleterious substances, were this a subject on which I meant to
speak. The following statement is copied from the Monthly Magazine for
March 1811, p. 188.
"On the 17th of January, the passengers by the Highflyer coach, from the
north, dined, as usual, at Newark. A bottle of Port wine was ordered; on
tasting which, one of the passengers observed that it had an unpleasant
flavour, and begged that it might be changed. The waiter took away the
bottle, poured into a fresh decanter half the wine which had been
objected to, and filled it up from another bottle. This he took into the
room, and the greater part was drank by the passengers, who, after the
coach had set out towards Grantham, were seized with extreme sickness;
one gentleman in particular, who had taken more of the wine than the
others, it was thought would have died, but has since recovered. The
half of the bottle of wine sent out of the passengers' room, was put
aside for the purpose of mixing negus. In the evening, Mr. Bland, of
Newark, went into the hotel, and drank a glass or two of wine and water.
He returned home at his usual hour, and went to bed; in the middle of
the night he was taken so ill, as to induce Mrs. Bland to send for his
brother, an apothecary in the town; but before that gentleman arrived,
he was dead. An inquest was held, and the jury, after the fullest
enquiry, and the examination of the surgeons by whom the body was
opened, returned a verdict of--_Died by Poison._"
The most dangerous adulteration of wine is by some preparations of lead,
which possess the property of stopping the progress of acescence of
wine, and also of rendering white wines, when muddy, transparent. I have
good reason to state that lead is certainly employed for this purpose.
The effect is very rapid; and there appears to be no other method known,
of rapidly recovering ropy wines. Wine merchants persuade themselves
that the minute quantity of lead employed for that purpose is perfectly
harmless, and that no atom of lead remains in the wine. Chemical
analysis proves the contrary; and the practice of clarifying spoiled
white wines by means of lead, must be pronounced as highly deleterious.
Lead, in whatever state it be taken into the stomach, occasions terrible
diseases; and wine, adulterated with the minutest quantity of it,
becomes a slow poison. The merchant or dealer who practises this
dangerous sophistication, adds the crime of murder to that of fraud, and
deliberately scatters the seeds of disease and death among those
consumers who contribute to his emolument. If to debase the current
coin of the realm be denounced as a capital offence, what punishment
should be awarded against a practice which converts into poison a liquor
used for sacred purposes.
Dr. Watson[33] relates, that the method of adulterating wine with lead,
was at one time a common practice in Paris.
Dr. Warren[34] states an instance of thirty-two persons having become
severely ill, after drinking white wine that had been adulterated with
lead. One of them died, and one became paralytic.
In Graham's Treatise on Wine-Making,[35] under the article of _Secrets_,
belonging to the mysteries of vintners, p. 31, lead is recommended to
prevent wine from becoming acid. The following lines are copied from Mr.
Graham's work:
"_To hinder Wine from turning._
"Put a pound of melted lead, in fair water, into your cask, pretty
warm, and stop it close."
"_To soften Grey Wine._
"Put in a little vinegar wherein litharge has been well steeped, and
boil some honey, to draw out the wax. Strain it through a cloth, and
put a quart of it into a tierce of wine, and this will mend it."
* * * * *
The ancients knew that lead rendered harsh wines milder, and preserved
it from acidity, without being aware that it was pernicious: it was
therefore long used with confidence; and when its effects were
discovered, they were not ascribed to that metal, but to some other
cause.[36] When the Greek and Roman wine merchants wished to try whether
their wine was spoiled, they immersed in it a plate of lead;[37] if the
colour of the lead were corroded, they concluded that their wine was
spoiled. Wine may become accidentally impregnated with lead.
It is well known that bottles in which wine has been kept, are usually
cleaned by means of shot, which by its rolling motion detaches the
super-tartrate of potash from the sides of the bottles. This practice,
which is generally pursued by wine-merchants, may give rise to serious
consequences, as will become evident from the following case:[38]
"A gentleman who had never in his life experienced a day's illness, and
who was constantly in the habit of drinking half a bottle of Madeira
wine after his dinner, was taken ill, three hours after dinner, with a
severe pain in the stomach and violent bowel colic, which gradually
yielded within twelve hours to the remedies prescribed by his medical
adviser. The day following he drank the remainder of the same bottle of
wine which was left the preceding day, and within two hours afterwards
he was again seized with the most violent colliquative pains, headach,
shiverings, and great pain over the whole body. His apothecary becoming
suspicious that the wine he had drank might be the cause of the
disease, ordered the bottle from which the wine had been decanted to be
brought to him, with a view that he might examine the dregs, if any were
left. The bottle happening to slip out of the hand of the servant,
disclosed a row of shot wedged forcibly into the angular bent-up
circumference of it. On examining the beads of shot, they crumbled into
dust, the outer crust (defended by a coat of black lead with which the
shot is glazed) being alone left unacted on, whilst the remainder of the
metal was dissolved. The wine, therefore, had become contaminated with
_lead and arsenic_, the shot being a compound of these metals, which no
doubt had produced the mischief."
TEST FOR DETECTING THE DELETERIOUS ADULTERATIONS OF WINE.
A ready re-agent for detecting the presence of lead, or any other
deleterious metal in wine, is known by the name of the _wine test_. It
consists of water saturated with sulphuretted hydrogen gas, acidulated
with muriatic acid. By adding one part of it, to two of wine, or any
other liquid suspected to contain lead, a dark coloured or black
precipitate will fall down, which does not disappear by an addition of
muriatic acid; and this precipitate, dried and fused before the blowpipe
on a piece of charcoal, yields a globule of metallic lead. This test
does not precipitate iron; the muriatic acid retains iron in solution
when combined with sulphuretted hydrogen; and any acid in the wine has
no effect in precipitating any of the sulphur of the test liquor. Or a
still more efficacious method is, to pass a current of sulphuretted
hydrogen gas through the wine, in the manner described, p. 70, having
previously acidulated the wine with muriatic acid.
The wine test sometimes employed is prepared in the following
manner:--Mix equal parts of finely powdered sulphur and of slacked
quick-lime, and expose it to a red heat for twenty minutes. To
thirty-six grains of this sulphuret of lime, add twenty-six grains of
super-tartrate of potassa; put the mixture into an ounce bottle, and
fill up the bottle with water that has been previously boiled, and
suffered to cool. The liquor, after having been repeatedly shaken, and
allowed to become clear, by the subsidence of the undissolved matter,
may then be poured into another phial, into which about twenty drops of
muriatic acid have been previously put. It is then ready for use. This
test, when mingled with wine containing lead or copper, turns the wine
of a dark-brown or black colour. But the mere application of
sulphuretted hydrogen gas to wine, acidulated by muriatic acid, is a far
more preferable mode of detecting lead in wine.
M. Vogel[39] has lately recommended acetate of lead as a test for
detecting extraneous colours in red wine. He remarks, that none of the
substances that can be employed for colouring wine, such as the berries
of the Vaccinium Mirtillus (bilberries), elderberries, and Campeach
wood, produce with genuine red wine, a greenish grey precipitate, which
is the colour that is procured by this test by means of genuine red
wines.
Wine coloured with the juice of the bilberries, or elderberries, or
Campeach wood, produces, with acetate of lead, a deep blue precipitate;
and Brazil-wood, red saunders, and the red beet, produce a colour which
is precipitated red by acetate of lead. Wine coloured by beet root is
also rendered colourless by lime water; but the weakest acid brings back
the colour. As the colouring matter of red wines resides in the skin of
the grape, M. Vogel prepared a quantity of skins, and reduced them to
powder. In this state he found that they communicated to alcohol a deep
red colour: a paper stained with this colour was rendered red by acids
and green by alkalies.
M. Vogel made a quantity of red wine from black grapes, for the purpose
of his experiments; and this produced the genuine greyish green
precipitate with acetate of lead. He also found the same coloured
precipitate in two specimens of red wine, the genuineness of which could
not be suspected; the one from Chateau-Marguaux, and the other from the
neighbourhood of Coblentz.
SPECIFIC DIFFERENCES, AND COMPONENT PARTS OF WINE.
Every body knows that no product of the arts varies so much as wine;
that different countries, and sometimes the different provinces of the
same country, produce different wines. These differences, no doubt, must
be attributed chiefly to the climate in which the vineyard is
situated--to its culture--the quantity of sugar contained in the grape
juice--the manufacture of the wine; or the mode of suffering its
fermentation to be accomplished. If the grapes be gathered unripe, the
wine abounds with acid; but if the fruit be gathered ripe, the wine will
be rich. When the proportion of sugar in the grape is sufficient, and
the fermentation complete, the wine is perfect and generous. If the
quantity of sugar be too large, part of it remains undecomposed, as the
fermentation is languid, and the wine is sweet and luscious; if, on the
contrary, it contains, even when full ripe, only a small portion of
sugar, the wine is thin and weak; and if it be bottled before the
fermentation be completed, part of the sugar remains undecomposed, the
fermentation will go on slowly in the bottle, and, on drawing the cork,
the wine sparkles in the glass; as, for example, Champagne. Such wines
are not sufficiently mature. When the must is separated from the husk of
the red grape before it is fermented, the wine has little or no colour:
these are called _white_ wines. If, on the contrary, the husks are
allowed to remain in the must while the fermentation is going on, the
alcohol dissolves the colouring matter of the husks, and the wine is
coloured: such are called _red_ wines. Hence white wines are often
prepared from red grapes, the liquor being drawn off before it has
acquired the red colour; for the skin of the grape only gives the
colour. Besides in these principal circumstances, wines vary much in
flavour.
All wines contain one common and identical principle, from which their
similar effects are produced; namely, _brandy_ or _alcohol_. It is
especially by the different proportions of brandy contained in wines,
that they differ most from one another. When wine is distilled, the
alcohol readily separates. The spirit thus obtained is well known under
the name of _brandy_.
All wines contain also a free acid; hence they turn blue tincture of
cabbage, red. The acid found in the greatest abundance in grape wines,
is tartaric acid. Every wine contains likewise a portion of
super-tartrate of potash, and extractive matter, derived from the juice
of the grape. These substances deposit slowly in the vessel in which
they are kept. To this is owing the improvement of wine from age. Those
wines which effervesce or froth, when poured into a glass, contain also
carbonic acid, to which their briskness is owing. The peculiar flavour
and odour of different kinds of wines probably depend upon the presence
of a _volatile oil_, so small in quantity that it cannot be separated.
EASY METHOD OF ASCERTAINING THE QUANTITY OF BRANDY CONTAINED IN VARIOUS
SORTS OF WINE.
The strength of all wines depends upon the quantity of alcohol or brandy
which they contain. Mr. Brande, and Gay-Lussac, have proved, by very
decisive experiments, that all wines contain brandy or alcohol ready
formed. The following is the process discovered by Mr. Brande, for
ascertaining the quantity of spirit, or brandy, contained in different
sorts of wine.
EXPERIMENT.
Add to eight parts, by measure, of the wine to be examined, one part of
a concentrated solution of sub-acetate of lead: a dense insoluble
precipitate will ensue; which is a combination of the test liquor with
the colouring, extractive, and acid matter of the wine. Shake the
mixture for a few minutes, pour the whole upon a filtre, and collect the
filtered fluid. It contains the brandy or spirit, and water of the wine,
together with a portion of the sub-acetate of lead. Add, in small
quantities at a time, to this fluid, warm, dry, and pure sub-carbonate
of potash (_not salt of tartar, or sub-carbonate of potash of
commerce_), which has previously been freed from water by heat, till the
last portion added remains undissolved. The brandy or spirit contained
in the fluid will become separated; for the sub-carbonate of potash
abstracts from it the whole of the water with which it was combined; the
brandy or spirit of wine forming a distinct stratum, which floats upon
the aqueous solution of the alkaline salt. If the experiment be made in
a glass tube, from one-half inch to two inches in diameter, and
graduated into 100 equal parts, the _per centage_ of spirit, in a given
quantity of wine, may be read off by mere inspection. In this manner the
strength of any wine may be examined.
_Tabular View, exhibiting the Per Centage of Brandy or Alcohol[40]
contained in various kinds of Wines, and other fermented Liquors._[41]
Proportion of Spirit
per Cent.
by measure.
Lissa 26,47
Ditto 24,35
Average 25,41
Raisin Wine 26,40
Ditto 25,77
Ditto 23,30
Average 25,12
Marcella 26,03
Ditto 25,05
Average 25,09
Madeira 24,42
Ditto 23,93
Ditto (Sercial) 21,40
Ditto 19,24
Average 22,27
Port 25,83
Ditto 24,29
Ditto 23,71
Ditto 23,39
Ditto 22,30
Ditto 21,40
Ditto 19,96
Average 22,96
Sherry 19,81
Ditto 19,83
Ditto 18,79
Ditto 18,25
Average 19,17
Teneriffe 19,79
Colares 19,75
Lachryma Christi 19,70
Constantia (White) 19,75
Ditto (Red) 18,92
Lisbon 18,94
Malaga (1666) 18,94
Bucellas 18,49
Red Madeira 22,30
Ditto 18,40
Average 20,35
Cape Muschat 18,25
Cape Madeira 22,94
Ditto 20,50
Ditto 18,11
Average 20,51
Grape Wine 18,11
Calcavella 19,20
Ditto 18,10
Average 18,65
Vidonia 19,25
Alba Flora 17,26
Malaga 17,26
Hermitage (White) 17,43
Roussillon 19,00
Ditto 17,20
Average 18,13
Claret 17,11
Ditto 16,32
Ditto 14,08
Ditto 12,91
Average 15,10
Malmsey Madeira 16,40
Lunel 15,52
Sheraaz 15,52
Syracuse 15,28
Sauterne 14,22
Burgundy 16,60
Ditto 15,22
Ditto 14,53
Ditto 11,95
Average 14,57
Hock 14,37
Ditto 13,00
Ditto (old in cask) 8,68
Average 12,08
Nice 14,62
Barsac 13,86
Tent 13,30
Champagne (Still) 13,80
Ditto (Sparkling) 12,80
Ditto (Red) 12,56
Ditto (ditto) 11,30
Average 12,61
Red Hermitage 12,32
Vin de Grave 13,94
Ditto 12,80
Average 13,37
Frontignac 12,79
Cote Rotie 12,32
Gooseberry Wine 11,84
Currant Wine 20,55
Orange Wine aver. 11,26
Tokay 9,88
Elder Wine 9,87
Cyder highest aver. 9,87
Ditto lowest ditto 5,21
Perry average 7,26
Mead 7,32
Ale (Burton) 8,88
Ditto (Edinburgh) 6,20
Ditto (Dorchester) 5,50
Average 6,87
Brown Stout 6,80
London Porter aver. 4,20
Do. Small Beer, do. 1,28
Brandy 53,39
Rum 53,68
Gin 51,60
Scotch Whiskey 54,32
Irish ditto 53,99
CONSTITUTION OF HOME-MADE WINES.
Besides grapes, the most valuable of the articles of which wine is made,
there are a considerable number of fruits from which a vinous liquor is
obtained. Of such, we have in this country the gooseberry, the currant,
the elderberry, the cherry, &c. which ferment well, and affords what are
called _home-made wines_.
They differ chiefly from foreign wines in containing a much larger
quantity of acid. Dr. Macculloch[42] has remarked that the acid in
home-made wines is principally the malic acid; while in grape wines it
is the tartaric acid.
The great deficiency in these wines, independent of the flavour, which
chiefly originates, not from the juice, but from the seeds and husks of
the fruits, is the excess of acid, which is but imperfectly concealed by
the addition of sugar. This is owing, chiefly, as Dr. Macculloch
remarks, to the tartaric acid existing in the grape juice in the state
of super-tartrate of potash, which is in part decomposed during the
fermentation, and the rest becomes gradually precipitated; whilst the
malic acid exists in the currant and gooseberry juice in the form of
malate of potash; which salt does not appear to suffer a decomposition
during the fermentation of the wine; and, by its greater solubility, is
retained in the wine. Hence Dr. Macculloch recommends the addition of
super-tartrate of potash, in the manufacture of British wines. They also
contain a much larger proportion of mucilage than wines made from
grapes. The juice of the gooseberry contains some portion of tartaric
acid; hence it is better suited for the production of what is called
_English Champagne_, than any other fruit of this country.
FOOTNOTES:
[27] Dried bilberries are imported from Germany, under the fallacious
name of _berry-dye_.
[28] The gypsum had the property of clarifying wines, was known to the
ancients. "The Greeks and Romans put gypsum in their new wines, stirred
it often round, then let it stand for some time; and when it had
settled, decanted the clear liquor. (_Geopon_, lib. vii. p. 483, 494.)
They knew that the wine acquired, by this addition, a certain sharpness,
which it afterwards lost; but that the good effects of the gypsum were
lasting."
[29] Sawdust for this purpose is chiefly supplied by the ship-builders,
and forms a regular article of commerce of the brewers' druggists.
[30] Tatler, vol. viii. p. 110, edit. 1797. 8vo.
[31] Dr. Reece's Gazette of Health, No. 7.
[32] Supplement to the Pharmacopoeias, p. 245.
[33] Chemical Essays, vol. viii. p. 369.
[34] Medical Trans. vol. ii. p. 80.
[35] This book, which has run through many editions, may be supposed to
have done some mischief.--In the Vintner's Guide, 4th edit. 1770, p. 67,
a lump of sugar of lead, of the size of a walnut, and a table-spoonful
of sal enixum, are directed to be added to a tierce (forty-two gallons)
of muddy wine, _to cure it of its muddiness_.
[36] Beckman's History of Inventions, vol. i. p. 398.
[37] Pliny, lib. xiv. cap. 20.
[38] Philosophical Magazine, 1819, No. 257, p. 229.
[39] Journ. Pharm. iv. 56 (Feb. 1818.) and Thomson's Annals, Sept. 1818,
p. 232.
[40] Of a Specific Gravity. 825.
[41] Philosophical Trans. 1811, p. 345; 1813, p. 87; Journal of Science
and the Arts, No. viii. p. 290.
[42] Macculloch on Wine. This is by far the best treatise published in
this country on the Manufacture of Home-made Wines.
_Adulteration of Bread._
This is one of the sophistications of the articles of food most commonly
practised in this metropolis, where the goodness of bread is estimated
entirely by its whiteness. It is therefore usual to add a certain
quantity of alum to the dough; this improves the look of the bread very
much, and renders it whiter and firmer. Good, white, and porous bread,
may certainly be manufactured from good wheaten flour alone; but to
produce the degree of whiteness rendered indispensable by the caprice of
the consumers in London, it is necessary (unless the very best flour is
employed,) that the dough should be _bleached_; and no substance has
hitherto been found to answer this purpose better than alum.
Without this salt it is impossible to make bread, from the kind of flour
usually employed by the London bakers, so white, as that which is
commonly sold in the metropolis.
If the alum be omitted, the bread has a slight yellowish grey hue--as
may be seen in the instance of what is called _home-made bread_, of
private families. Such bread remains longer moist than bread made with
alum; yet it is not so light, and full of eyes, or porous, and it has
also a different taste.
The quantity of alum requisite to produce the required whiteness and
porosity depends entirely upon the genuineness of the flour, and the
quality of the grain from which the flour is obtained. The mealman makes
different sorts of flour from the same kind of grain. The best flour is
mostly used by the biscuit bakers and pastry cooks, and the inferior
sorts in the making of bread. The bakers' flour is very often made of
the worst kinds of damaged foreign wheat, and other cereal grains mixed
with them in grinding the wheat into flour. In this capital, no fewer
than six distinct kinds of wheaten flour are brought into market. They
are called fine flour, seconds, middlings, fine middlings, coarse
middlings, and twenty-penny flour. Common garden beans, and pease, are
also frequently ground up among the London bread flour.
I have been assured by several bakers, on whose testimony I can rely,
that the small profit attached to the bakers' trade, and the bad
quality of the flour, induces the generality of the London bakers to use
alum in the making of their bread.
The smallest quantity of alum that can be employed with effect to
produce a white, light, and porous bread, from an inferior kind of
flour, I have my own baker's authority to state, is from three to four
ounces to a sack of flour, weighing 240 pounds. The alum is either mixed
well in the form of powder, with a quantity of flour previously made
into a liquid paste with water, and then incorporated with the dough; or
the alum is dissolved in the water employed for mixing up the whole
quantity of the flour for making the dough.
Let us suppose that the baker intends to convert five bushels, or a sack
of flour, into loaves with the least adulteration practised. He pours
the flour into the kneading trough, and sifts it through a fine wire
sieve, which makes it lie very light, and serves to separate any
impurities with which the flour may be mixed. Two ounces of alum are
then dissolved in about a quart of boiling water, and the solution
poured into _the seasoning-tub_. Four or five pounds of salt are
likewise put into the tub, and a pailful of hot-water. When this mixture
has cooled down to the temperature of about 84°, three or four pints of
yeast are added; the whole is mixed, strained through the seasoning
sieve, emptied into a hole in the flour, and mixed up with the requisite
portion of it to the consistence of a thick batter. Some dry flour is
then sprinkled over the top, and it is covered up with cloths.
In this situation it is left about three hours. It gradually swells and
breaks through the dry flour scattered on its surface. An additional
quantity of warm water, in which one ounce of alum is dissolved, is now
added, and the dough is made up into a paste as before; the whole is
then covered up. In this situation it is left for a few hours.
The whole is then intimately kneaded with more water for upwards of an
hour. The dough is cut into pieces with a knife, and penned to one side
of the trough; some dry flour is sprinkled over it, and it is left in
this state for about four hours. It is then kneaded again for
half-an-hour. The dough is now cut into pieces and weighed, in order to
furnish the requisite quantity for each loaf. The loaves are left in the
oven about two hours and a half. When taken out, they are carefully
covered up, to prevent as much as possible the loss of weight.[43]
The following account of making a sack, of five bushels of flour into
bread, is taken from Dr. P. Markham's Considerations on the Ingredients
used in the Adulteration of Bread Flour, and Bread, p. 21:
5 bushels of flour,
8 ounces of alum,[44]
4 lbs. of salt,
1/2 a gallon of yeast, mixed with about
3 gallons of water.
* * * * *
lbs.
The whole quantity of bread-flour obtained }
from the bushel of wheat, weighs } 48
lbs.
Fine pollard 4-1/4
Coarse pollard 4
Bran 2-3/4
------ 11
--
The whole together 59
To which add the loss of weight in }
manufacturing a bushel of wheat } 2
--
Produces the original weight 61
--
The theory of the bleaching property of alum, as manifested in the
panification of an inferior kind of flour, is by no means well
understood; and indeed it is really surprising that the effect should be
produced by so small a quantity of that substance, two or three ounces
of alum being sufficient for a sack of flour.
From experiments in which I have been employed, with the assistance of
skilful bakers, I am authorised to state, that without the addition of
alum, it does not appear possible to make white, light, and porous
bread, such as is used in this metropolis, unless the flour be of the
very best quality.
Another substance employed by fraudulent bakers, is subcarbonate of
ammonia. With this salt, they realise the important consideration of
producing light and porous bread, from spoiled, or what is technically
called _sour flour_. This salt which becomes wholly converted into a
gaseous state during the operation of baking, causes the dough to swell
up into air bubbles, which carry before them the stiff dough, and thus
it renders the dough porous; the salt itself is, at the same time,
totally volatilised during the operation of baking. Thus not a vestige
of carbonate of ammonia remains in the bread. This salt is also largely
employed by the biscuit and ginger-bread bakers.
Potatoes are likewise largely, and perhaps constantly, used by
fraudulent bakers, as a cheap ingredient, to enhance their profit. The
potatoes being boiled, are triturated, passed through a sieve, and
incorporated with the dough by kneading. This adulteration does not
materially injure the bread. The bakers assert, that the bad quality of
the flour renders the addition of potatoes advantageous as well to the
baker as to the purchaser, and that without this admixture in the
manufacture of bread, it would be impossible to carry on the trade of a
baker. But the grievance is, that the same price is taken for a potatoe
loaf, as for a loaf of genuine bread, though it must cost the baker
less.
I have witness, that five bushels of flour, three ounces of alum, six
pounds of salt, one bushel of potatoes boiled into a stiff paste, and
three quarts of yeast, with the requisite quantity of water, produce a
white, light, and highly palatable bread.
Such are the artifices practised in the preparation of bread,[45] and it
must be allowed, on contrasting them with those sophistications
practised by manufacturers of other articles of food, that they are
comparatively unimportant. However, some medical men have no hesitation
in attributing many diseases incidental to children to the use of eating
adulterated bread; others again will not admit these allegations: they
persuade themselves that the small quantity of alum added to the bread
(perhaps upon an average, from eight to ten grains to a quartern loaf,)
is absolutely harmless.
Dr. Edmund Davy, Professor of Chemistry, at the Cork Institution, has
communicated the following important facts to the public concerning the
manufacture of bread.
"The carbonate of magnesia of the shops, when well mixed with flour, in
the proportion of from twenty to forty grains to a pound of flour,
materially improves it for the purpose of making bread.
"Loaves made with the addition of carbonate of magnesia, rise well in
the oven; and after being baked, the bread is light and spongy, has a
good taste, and keeps well. In cases when the new flour is of an
indifferent quality, from twenty to thirty grains of carbonate of
magnesia to a pound of the flour will considerably improve the bread.
When the flour is of the worst quality, forty grains to a pound of flour
seem necessary to produce the same effect.
"As the improvement in the bread from new flour depends upon the
carbonate of magnesia, it is necessary that care should be taken to mix
it intimately with the flour, previous to the making of the dough.
"Mr. Davy made a great number of comparative experiments with other
substances, mixed in different proportions with new bread flour. The
fixed alkalies, both in their pure and carbonated state, when used in
small quantity, to a certain extent were found to improve the bread made
from new flour; but no substance was so efficacious in this respect as
carbonate of magnesia.
"The greater number of his experiments were performed on the worst new
_seconds_ flour Mr. Davy could procure. He also made some trials on
_seconds_ and _firsts_ of different quality. In some cases the results
were more striking and satisfactory than in others; but in every
instance the improvement of the bread, by carbonate of magnesia, was
obvious.
"Mr. Davy observes, that a pound of carbonate of magnesia would be
sufficient to mix with two hundred and fifty-six pounds of new flour, or
at the rate of thirty grains to the pound. And supposing a pound of
carbonate of magnesia to cost half-a-crown, the additional expense would
be only half a farthing in the pound of flour.
"Mr. Davy conceives that not the slightest danger can be apprehended
from the use of such an innocent substance, as the carbonate of
magnesia, in such small proportion as is necessary to improve bread from
new flour."
METHOD OF DETECTING THE PRESENCE OF ALUM IN BREAD.
Pour upon two ounces of the suspected bread, half a pint of boiling
distilled water; boil the mixture for a few minutes, and filter it
through unsized paper. Evaporate the fluid, to about one fourth of its
original bulk, and let gradually fall into the clear fluid a solution of
muriate of barytes. If a _copious_ white precipitate ensues, which does
not disappear by the addition of _pure_ nitric acid, the presence of
alum may be suspected. Bread, made without alum, produces, when assayed
in this manner, merely a very slight precipitate, which originates from
a minute portion of sulphate of magnesia contained in all common salt of
commerce; and bread made with salt freed from sulphate of magnesia,
produces an infusion with water, which does not become disturbed by the
barytic test.
Other means of detecting all the constituent parts of alum, namely, the
alumine, sulphuric acid, and potash, so as to render the presence of the
alum unequivocal, will readily suggest itself to those who are familiar
with analytical chemistry; namely: one of the readiest means is, to
decompose the vegetable matter of the bread, by the action of chlorate
of potash, in a platina crucible, at a red heat, and then to assay the
residuary mass--by means of muriate of barytes, for sulphuric acid; by
ammonia, for alumine; and by muriate of platina, for potash[46]. The
above method of detecting the presence of alum, must therefore be taken
with some limitation.
There is no unequivocal test for detecting in a _ready manner_ the
presence of alum in bread, on account of the impurity of the common salt
used in the making of bread. If we could, in the ordinary way of bread
making, employ common salt, absolutely free from foreign saline
substances, the mode of detecting the presence of alum, or at least one
of its constituent parts, namely, the sulphuric acid, would be very
easy. Some conjecture may, nevertheless, be formed of the presence, or
absence, of alum, by assaying the infusion of bread in the manner
stated, p. 109, and comparing the assay with the results afforded by an
infusion of home-made or household bread, known to be genuine, and
actually assayed in a similar manner.
EASY METHOD OF JUDGING OF THE GOODNESS OF BREAD CORN, AND BREAD-FLOUR.
Millers judge of the goodness of bread corn by the quantity of bran
which the grain produces.
Such grains as are full and plump, that have a bright and shining
appearance, without any shrivelling and shrinking in the covering of
the skin, are the best; for wrinkled grains have a greater quantity of
skin, or bran, than such as are sound or plump.
Pastry-cooks and bakers judge of the goodness of flour in the manner in
which it comports itself in kneading. The best kind of wheaten flour
assumes, at the instant it is formed into paste by the addition of
water, a very gluey, ductile, and elastic paste, easy to be kneaded, and
which may be elongated, flattened, and drawn in every direction, without
breaking.
For the following fact we are indebted to Mr. Hatchet.
"Grain which has been heated or burnt in the stack, may in the following
manner be rendered fit for being made into bread:
"The wheat must be put into a vessel capable of holding at least three
times the quantity, and the vessel filled with boiling water; the grain
should then be occasionally stirred, and the hollow decayed grains,
which float, may be removed. When the water has become cold, or in about
half an hour, it is drawn off. Then rince the corn with cold water, and,
having completely drained it, spread it thinly on the floor of a kiln,
and thus thoroughly dry it, stirring and turning it frequently during
this part of the process."[47]
FOOTNOTES:
[43] The sack of marketable flour is by law obliged to weigh 240 pounds,
which is the produce of five bushels of wheat, and is upon an average
supposed to make eighty quartern loaves of bread; and consequently
sixteen of such loaves are made from each bushel of good wheat. It is
admitted, however, that two or three loaves more than the above quantity
can be made from the sack of flour, when it is the _genuine produce_ of
_good wheat_; that is, in the proportion of about sixteen and a half
loaves from each bushel of sound grain, and, it may be presumed, sixteen
from a bushel of medium corn. The expense, in London, of making the sack
of flour into bread, and disposing of it, is about nine shillings.
A bushel of wheat, upon an average, weighs sixty-one pounds; when
ground, the meal weighs 60-3/4 lbs.; which, on being dressed, produces
46-3/4 lbs. of flour, of the sort called _seconds_; which alone is used
for the making of bread in London and throughout the greater part of
this country; and of pollard and bran 12-3/4 lbs., which quantity, when
bolted, produces 3 lbs. of fine flour, this, when sifted, produces in
good second flour 1-1/4 lb.
[44] Whilst correcting this sheet for the press, the printer transmits
to me the following lines:
"On Saturday last, George Wood, a baker, was convicted before T. Evance,
Esq. Union Hall, of having in his possession a quantity of alum for the
adulteration of bread, and fined in the penalty of 5_l._ and costs,
under 55 Geo. III. c. 99."--_The Times_, Oct. 1819.
[45] There are instances of convictions on record, of bakers having used
gypsum, chalk, and pipe clay, in the manufacture of bread.
[46] See a Practical Treatise on the Use and Application of Chemical
Tests, illustrated by experiments, 3d edit. p. 270, 231, 177, & 196.
[47] Phil. Trans. for 1817, part i.
_Adulteration of Beer._
Malt liquors, and particularly porter, the favourite beverage of the
inhabitants of London, and of other large towns, is amongst those
articles, in the manufacture of which the greatest frauds are frequently
committed.
The statute prohibits the brewer from using any ingredients in his
brewings, except malt and hops; but it too often happens that those who
suppose they are drinking a nutritious beverage, made of these
ingredients only, are entirely deceived. The beverage may, in fact, be
neither more nor less than a compound of the most deleterious
substances; and it is also clear that all ranks of society are alike
exposed to the nefarious fraud. The proofs of this statement will be
shewn hereafter.[48]
The author[49] of a Practical Treatise on Brewing, which has run
through eleven editions, after having stated the various ingredients for
brewing porter, observes, "that however much they may surprise, however
pernicious or disagreeable they may appear, he has always found them
requisite in the brewing of porter, and he thinks they must invariably
be used by those who wish to continue the taste, flavour, and appearance
of the beer.[50] And though several Acts of Parliament have been passed
to prevent porter brewers from using many of them, yet the author can
affirm, from experience, he could never produce the present flavoured
porter without them.[51] The intoxicating qualities of porter are to be
ascribed to the various drugs intermixed with it. It is evident some
porter is more heady than other, and it arises from the greater or less
quantity of stupifying ingredients. Malt, to produce intoxication, must
be used in such large quantities as would very much diminish, if not
totally exclude, the brewer's profit."
The practice of adulterating beer appears to be of early date. By an
Act so long ago as Queen Anne, the brewers are prohibited from mixing
_cocculus indicus_, or any unwholesome ingredients, in their beer, under
severe penalties: but few instances of convictions under this act are to
be met with in the public records for nearly a century. To shew that
they have augmented in our own days, we shall exhibit an abstract from
documents laid lately before Parliament.[52]
These will not only amply prove, that unwholesome ingredients are used
by fraudulent brewers, and that very deleterious substances are also
vended both to brewers and publicans for adulterating beer, but that the
ingredients mixed up in the brewer's enchanting cauldron are placed
above all competition, even with the potent charms of Macbeth's witches:
"Root of hemlock, digg'd i' the dark,
+ + + + +
+ + + + +
For a charm of pow'rful trouble,
Like a hell-broth boil and bubble;
Double, double, toil and trouble,
Fire burn, and cauldron bubble."
The fraud of imparting to porter and ale an intoxicating quality by
narcotic substances, appears to have flourished during the period of the
late French war; for, if we examine the importation lists of drugs, it
will be noticed that the quantities of cocculus indicus imported in a
given time prior to that period, will bear no comparison with the
quantity imported in the same space of time during the war, although an
additional duty was laid upon this commodity. Such has been the amount
brought into this country in five years, that it far exceeds the
quantity imported during twelve years anterior to the above epoch. The
price of this drug has risen within these ten years from two shillings
to seven shillings the pound.
It was at the period to which we have alluded, that the preparation of
an extract of cocculus indicus first appeared, as a new saleable
commodity, in the price-currents of _brewers'-druggists_. It was at the
same time, also, that a Mr. Jackson, of notorious memory, fell upon the
idea of brewing beer from various drugs, without any malt and hops. This
chemist did not turn brewer himself; but he struck out the more
profitable trade of teaching his mystery to the brewers for a handsome
fee. From that time forwards, written directions, and recipe-books for
using the chemical preparations to be substituted for malt and hops,
were respectively sold; and many adepts soon afterwards appeared every
where, to instruct brewers in the nefarious practice, first pointed out
by Mr. Jackson. From that time, also, the fraternity of
brewers'-chemists took its rise. They made it their chief business to
send travellers all over the country with lists and samples exhibiting
the price and quality of the articles manufactured by them for the use
of brewers only. Their trade spread far and wide, but it was amongst the
country brewers chiefly that they found the most customers; and it is
amongst them, up to the present day, as I am assured by some of these
operators, on whose veracity I can rely, that the greatest quantities of
unlawful ingredients are sold.
The Act of Parliament[53] prohibits chemists, grocers, and druggists,
from supplying illegal ingredients to brewers under a heavy penalty, as
is obvious from the following abstract of the Act.
"No druggist, vender of, or dealer in drugs, or chemist, or other
person, shall sell or deliver to any licensed brewer, dealer in or
retailer of beer, knowing him to be such, or shall sell or deliver to
any person on account of or in trust for any such brewer, dealer or
retailer, any liquor called by the name of or sold as colouring, from
whatever material the same may be made, or any material or preparation
other than unground brown malt for darkening the colour of worts or
beer, or any liquor or preparation made use of for darkening the colour
of worts or beer, or any molasses, honey, vitriol, quassia, cocculus
Indian, grains of paradise, Guinea pepper or opium, or any extract or
preparation of molasses, or any article or preparation to be used in
worts or beer for or as a substitute for malt or hops; and if any
druggist shall offend in any of these particulars, such liquor
preparation, molasses, &c. shall be forfeited, and may be seized by any
officer of excise, and the person so offending shall for each offence
forfeit 500_l._"
The following is a list of druggists and grocers, prosecuted by the
Court of Excise, and convicted of supplying unlawful ingredients to
brewers.
_List of Druggists and Grocers, prosecuted and convicted from 1812 to
1819, for supplying illegal Ingredients to Brewers for adulterating
Beer._[54]
John Dunn and another, druggists, for selling adulterating ingredients
to brewers, verdict 500_l._
George Rugg and others, druggists, for selling adulterating ingredients
to brewers, verdict 500_l._
John Hodgkinson and others, for selling adulterating ingredients to
brewers, 100_l._ and costs.
William Hiscocks and others, for selling adulterating ingredients to a
brewer, 200_l._ and costs.
G. Hornby; for selling adulterating ingredients to a brewer, 200_l._
W. Wilson, for selling adulterating ingredients to a brewer, 200_l._
George Andrews, grocer, for selling adulterating ingredients to a
brewer, 25_l._ and costs.
Guy Knowles, for selling substitute for hops, costs.
Kernot and Alsop, for selling cocculus india, &c. 25_l._
Joseph Moss, for selling various drugs, 300_l._
Ph. Whitcombe, John Dunn, and Arthur Waller, druggists, for having
liquor for darkening the colour of beer, hid and concealed.
Isaac Hebberd, for having liquor for darkening the colour of beer, hid
and concealed.
Ph. Whitcombe, John Dunn, and Arthur Waller, druggists, for making
liquor for darkening the colour of beer.
John Lord, grocer, for selling molasses to a brewer, 20_l._ and costs.
John Smith Carr, grocer, for selling molasses to a brewer, 20_l._ and
costs.
Edward Fox, grocer, for selling molasses to a brewer, 25_l._ and costs.
John Cooper, grocer, for selling molasses to a brewer, 40_l._ and costs.
Joseph Bickering, grocer, for selling molasses to a brewer, 40_l._ and
costs.
John Howard, grocer, for selling molasses to a brewer, 25_l._ and costs.
James Reynolds, grocer, for selling molasses to a brewer, costs.
Thomas Hammond, grocer, for selling molasses to a brewer, 20_l._ and
costs.
J. Mackway, grocer, for selling molasses to a brewer, 20_l._
T. Renton, grocer, for selling molasses to a brewer, costs, and taking
out a license.
R. Adamson, grocer, for selling molasses to a brewer, costs, and taking
out a license.
W. Weaver, for selling Spanish liquorice to a brewer, 200_l._
J. Moss, for selling Spanish liquorice to a brewer.
Alex. Braden, for selling liquorice, 20_l._
J. Draper, for selling molasses to a brewer, 20_l._
PORTER.
The method of brewing porter has not been the same at all times as it is
at present.
At first, the only essential difference in the methods of brewing this
liquor and that of other kinds of beer, was, that porter was brewed from
brown malt only; and this gave to it both the colour and flavour
required. Of late years it has been brewed from mixtures of pale and
brown malt.
These, at some establishments, are mashed separately, and the worts from
each are afterwards mixed together. The proportion of pale and brown
malt, used for brewing porter, varies in different breweries; some
employ nearly two parts of pale malt and one part of brown malt; but
each brewer appears to have his own proportion; which the intelligent
manufacturer varies, according to the nature and qualities of the malt.
Three pounds of hops are, upon an average, allowed to every barrel,
(thirty-six gallons) of porter.
When the price of malt, on account of the great increase in the price of
barley during the late war, was very high, the London brewers discovered
that a larger quantity of wort of a given strength could be obtained
from pale malt than from brown malt. They therefore increased the
quantity of the former and diminished that of the latter. This produced
beer of a paler colour, and of a less bitter flavour. To remedy these
disadvantages, they invented an artificial colouring substance, prepared
by boiling brown sugar till it acquired a very dark brown colour; a
solution of which was employed to darken the colour of the beer. Some
brewers made use of the infusion of malt instead of sugar colouring. To
impart to the beer a bitter taste, the fraudulent brewer employed
quassia wood and wormwood as a substitute for hops.
But as the colouring of beer by means of sugar became in many instances
a pretext for using illegal ingredients, the Legislature, apprehensive
from the mischief that might, and actually did, result from it, passed
an Act prohibiting the use of burnt sugar, in July 1817; and nothing but
malt and hops is now allowed to enter into the composition of beer: even
the use of isinglass for clarifying beer, is contrary to law.
No sooner had the beer-colouring Act been repealed, than other persons
obtained a patent for effecting the purpose of imparting an artificial
colour to porter, by means of brown malt, specifically prepared for that
purpose only. The beer, coloured by the new method, is more liable to
become spoiled, than when coloured by the process formerly practised.
The colouring malt does not contain any considerable portion of
saccharine matter. The grain is by mere torrefaction converted into a
gum-like substance, wholly soluble in water, which renders the beer
more liable to pass into the acetous fermentation than the common brown
malt is capable of doing; because the latter, if prepared from good
barley, contains a portion of saccharine matter, of which the patent
malt is destitute.
But as brown malt is generally prepared from the worst kind of barley,
and as the patent malt can only be made from good grain, it may become,
on that account, an useful article to the brewer (at least, it gives
colour and body to the beer;) but it cannot materially economise the
quantity of malt necessary to produce good porter. Some brewers of
eminence in this town have assured me, that the use of this mode of
colouring beer is wholly unnecessary; and that porter of the requisite
colour may be brewed better without it; hence this kind of malt is not
used in their establishments. The quantity of gum-like matter which it
contains, gives too much ferment to the beer, and renders it liable to
spoil. Repeated experiments, made on a large scale, have settled this
fact.
STRENGTH AND SPECIFIC DIFFERENCES OF DIFFERENT KINDS OF PORTER.
The strength of all kinds of beer, like that of wine, depends on the
quantity of spirit contained in a given bulk of the liquor.
The reader need scarcely be told, that of no article there are more
varieties than of porter. This, no doubt, arises from the different mode
of manufacturing the beer, although the ingredients are the same. This
difference is more striking in the porter manufactured among country
brewers, than it is in the beer brewed by the eminent London porter
brewers. The totality of the London porter exhibits but very slight
differences, both with respect to strength or quantity of spirit, and
solid extractive matter, contained in a given bulk of it. The spirit may
be stated, upon an average, to be 4,50 per cent. in porter retailed at
the publicans; the solid matter, is from twenty-one to twenty-three
pounds per barrel of thirty-six gallons. The country-brewed porter is
seldom well fermented, and seldom contains so large a quantity of
spirit; it usually abounds in mucilage; hence it becomes turbid when
mixed with alcohol. Such beer cannot keep, without becoming sour.
It has been matter of frequent complaint, that ALL the porter
now brewed, is not what porter was formerly. This idea may be true with
some exceptions. My professional occupations have, during these
twenty-eight years, repeatedly obliged me to examine the strength of
London porter, brewed by different brewers; and, from the minutes made
on that subject, I am authorised to state, that the porter now brewed by
the eminent London brewers, is unquestionably stronger than that which
was brewed at different periods during the late French war. Samples of
brown stout with which I have been obligingly favoured, whilst writing
this Treatise, by Messrs. Barclay, Perkins, and Co.--Messrs. Truman,
Hanbury, and Co.--Messrs. Henry Meux and Co.--and other eminent brewers
of this capital--afforded, upon an average, 7,25 per cent. of alcohol,
of 0,833 specific gravity; and porter, from the same houses, yielded
upon an average 5,25 per cent. of alcohol, of the same specific
gravity;[55] this beer received from the brewers was taken from the
same store from which the publicans are supplied.
It is nevertheless singular to observe, that from fifteen samples of
beer of the same denominations, procured from different retailers, the
proportions of spirit fell considerably short of the above quantities.
Samples of brown stout, procured from the retailers, afforded, upon an
average, 6,50 per cent. of alcohol; and the average strength of the
porter was 4,50 per cent. Whence can this difference between the beer
furnished by the brewer, and that retailed by the publican, arise? We
shall not be at a loss to answer this question, when we find that so
many retailers of porter have been prosecuted and convicted for mixing
table beer with their strong beer; this is prohibited by law, as becomes
obvious by the following words of the Act.[56]
"If any common or other brewer, innkeeper, victualler, or retailer of
beer or ale, shall mix or suffer to be mixed any strong beer, ale, or
worts, with table beer, worts, or water, in any tub or measure, he shall
forfeit 50_l._" The difference between strong and table beer, is thus
settled by Parliament.
"All beer or ale[57] above the price of eighteen shillings per barrel,
exclusive of ale duties now payable (viz. ten shillings per barrel,) or
that may be hereafter payable in respect thereof, shall be deemed strong
beer or ale; and all beer of the price of eighteen shillings the barrel
or under, exclusive of the duty payable (viz. two shillings per barrel)
in respect thereof, shall be deemed table beer within the meaning of
this and all other Acts now in force, or that may hereafter be passed in
relation to beer or ale or any duties thereon."
_List of Publicans prosecuted and convicted from 1815 to 1818, for
adulterating Beer with illegal Ingredients, and for mixing Table Beer
with their Strong Beer._[58]
William Atterbury, for using salt of steel, salt, molasses, &c. and for
mixing table beer with strong beer, 40_l._
Richard Dean, for using salt of steel, salt, molasses, &c. and for
mixing table beer with strong beer, 50_l._
John Jay, for using salt of steel, salt, molasses, &c. and for mixing
table beer with strong beer, 50_l._
James Atkinson, for using salt of steel, salt, molasses, &c. and for
mixing table beer with strong beer, 20_l._
Samuel Langworth, for using salt of steel, salt, molasses, &c. and for
mixing table beer with strong beer, 50_l._
Hannah Spencer, for using salt of steel, salt, molasses, &c. and for
mixing table beer with strong beer, 150_l._
---- Hoeg, for using salt of steel, salt, molasses, &c. and for mixing
table beer with strong beer, 5_l._
Richard Craddock, for using salt of steel, salt, molasses, &c. and for
mixing table beer with strong beer, 100_l._
James Harris, for using salt of steel, salt, molasses, &c. and for
receiving stale beer, and mixing it with strong beer, 42_l._ and costs.
Thomas Scoons, for using salt of steel, salt, molasses, &c. and for
mixing stale beer with strong beer, verdict 200_l._
Diones Geer and another, for using salt of steel, salt, molasses, &c.
and for mixing strong and table beer, verdict 400_l._
Charles Coleman, for using salt of steel, salt, molasses, &c. and for
mixing strong and table beer, 35_l._ and costs.
William Orr, for using salt of steel, salt, molasses, &c. and for mixing
strong and table beer, 50_l._
John Gardiner, for using salt of steel, salt, molasses, &c. and for
mixing strong and table beer, 100_l._
John Morris, for using salt of steel, salt, molasses, &c. and for mixing
strong and table beer, 20_l._
John Harbur, for using salt of steel, salt, molasses, &c. and for mixing
strong and table beer, 50_l._
John Corrie, for mixing strong beer with table beer.
John Cape, for mixing strong beer with table beer.
Joseph Gudge, for mixing strong beer with small beer.
ILLEGAL SUBSTANCES USED FOR ADULTERATING BEER.
We have stated already (p. 113) that nothing is allowed by law to enter
into the composition of beer, but malt and hops.
The substances used by fraudulent brewers for adulterating beer, are
chiefly the following:
Quassia, which gives to beer a bitter taste, is substituted for hops;
but hops possesses a more agreeable aromatic flavour, and there is also
reason to believe that they render beer less liable to spoil by keeping;
a property which does not belong to quassia. It requires but little
discrimination to distinguish very clearly the peculiar bitterness of
quassia in adulterated porter. Vast quantities of the shavings of this
wood are sold in a half-torrefied and ground state to disguise its
obvious character, and to prevent its being recognised among the waste
materials of the brewers. Wormwood[59] has likewise been used by
fraudulent brewers.
The adulterating of hops is prohibited by the Legislature.[60]
"If any person shall put any drug or ingredient whatever into hops to
alter the colour or scent thereof, every person so offending, convicted
by the oath of one witness before one justice of peace for the county or
place where the offence was committed, shall forfeit 5_l._ for every
hundred weight."
Beer rendered bitter by quassia never keeps well, unless it be kept in a
place possessing a temperature considerably lower than the temperature
of the surrounding atmosphere; and this is not well practicable in large
establishments.
The use of boiling the wort of beer with hops, is partly to communicate
a peculiar aromatic flavour which the hop contains, partly to cover the
sweetness of undecomposed saccharine matter, and also to separate, by
virtue of the gallic acid and tannin it contains, a portion of a
peculiar vegetable mucilage somewhat resembling gluten, which is still
diffused through the beer. The compound thus produced, separates in
small flakes like those of curdled soap; and by these means the beer is
rendered less liable to spoil. For nothing contributes more to the
conversion of beer, or any other vinous fluid, into vinegar, than
mucilage. Hence, also, all full-bodied and clammy ales, abounding in
mucilage, and which are generally ill fermented, do not keep as perfect
ale ought to do. Quassia is, therefore, unfit as a substitute for hops;
and even English hops are preferable to those imported from the
Continent; for nitrate of silver and acetate of lead produce a more
abundant precipitate from an infusion of English hops, than can be
obtained from a like infusion by the same agents from foreign hops.
One of the qualities of good porter, is, that it should bear _a fine
frothy head_, as it is technically termed: because professed judges of
this beverage, would not pronounce the liquor excellent, although it
possessed all other good qualities of porter, without this requisite.
To impart to porter this property of frothing when poured from one
vessel into another, or to produce what is also termed a _cauliflower
head_, the mixture called _beer-heading_, composed of common green
vitriol (sulphate of iron,) alum, and salt, is added. This addition to
the beer is generally made by the publicans.[61] It is unnecessary to
genuine beer, which of itself possesses the property of bearing a strong
white froth, without these additions; and it is only in consequence of
table beer being mixed with strong beer, that the frothing property of
the porter is lost. From experiments I have tried on this subject, I
have reason to believe that the sulphate of iron, added for that
purpose, does not possess the power ascribed to it. But the publicans
frequently, when they fine a butt of beer, by means of isinglass,
adulterate the porter at the same time with table beer, together with a
quantity of molasses and a small portion of extract of gentian root, to
keep up the peculiar flavour of the porter; and it is to the molasses
chiefly, which gives a spissitude to the beer, that the frothing
property must be ascribed; for, without it, the sulphate of iron does
not produce the property of frothing in diluted beer.
Capsicum and grains of paradise, two highly acrid substances, are
employed to give a pungent taste to weak insipid beer. Of late, a
concentrated tincture of these articles, to be used for a similar
purpose, and possessing a powerful effect, has appeared in the
price-currents of brewers' druggists. Ginger root, coriander seed, and
orange peels, are employed as flavouring substances chiefly by the ale
brewers.
From these statements, and the seizures that have been made of illegal
ingredients at various breweries, it is obvious that the adulterations
of beer are not imaginary. It will be noticed, however, that some of the
sophistications are comparatively harmless, whilst others are effected
by substances deleterious to health.
The following list exhibits some of the unlawful substances seized at
different breweries and at chemical laboratories.
_List of Illegal Ingredients, seized from 1812 to 1818, at various
Breweries and Brewers' Druggists._[62]
1812, July. Josiah Nibbs, at Tooting, Surrey.
Multum 84 lbs.
Cocculus indicus 12
Colouring 4 galls.
Honey about 180 lbs.
Hartshorn Shavings 14
Spanish Juice 46
Orange Powder 17
Ginger 56
Penalty 300_l._
1813, June 13. Sarah Willis, at West Ham, Essex.
Cocculus indicus 1 lb.
Spanish Juice 12
Hartshorn Shavings 6
Orange Powder 1
Penalty 200_l._
August 3. Cratcherode Whiffing, Limehouse.
Grains of Paradise 44 lbs.
Quassia 10
Liquorice 64
Ginger 80
Caraway Seeds 40
Orange Powder 14
Copperas 4
Penalty 200_l._
Nov. 25. Elizabeth Hasler, at Stratford.
Cocculus indicus 12 lbs.
Multum 26
Grains of Paradise 12
Spanish Juice 30
Orange Powder 3
Penalty 200_l._
Dec. 14. John Abbott, at Canterbury, Kent.
Copperas, &c. 14 lbs.
Orange powder 2
Penalty 500_l._, and Crown's costs.
Proof of using drugs at various times.
1815, Feb. 15. Mantel and Cook, Castle-street, Bloomsbury-square.
Proof of mixing strong with table beer, and using colouring and other
things.
Compromised for 300_l._
1817. From Peter Stevenson, an old Servant to Dunn and Waller, St.
John-street, brewers' druggists.
Cocculus Indicus Extract 6 lbs.
Multum 560
Capsicum 88
Copperas 310
Quassia 150
Colouring and Drugs 84
Mixed Drugs 240
Spanish Liquorice 420
Hartshorn Shavings 77
Liquorice Powder 175
Orange powder 126
Caraway Seeds 100
Ginger 110
Ginger Root 176
Condemned, not being claimed.
July 30. Luke Lyons, Shadwell.
Capsicum 1 lb
Liquorice Root Powder 2
Coriander Seed 2
Copperas 1
Orange Powder 8
Spanish Liquorice 1/2
Beer Colouring 24 galls
Not tried. (7th May, 1818.)
Aug. 6. John Gray, at West Ham.
Multum 4 lbs.
Spanish Liquorice 21
Liquorice Root Powder 113
Ginger 116
Honey 11
Penalty, 300_l._, and costs; including mixing strong beer with table,
and paying table-beer duty for strong beer, &c.
* * * * *
Numerous other seizures of illegal substances, made at breweries, might
be advanced, were it necessary to enlarge this subject to a greater
extent.
Mr. James West, from the excise office, being asked in the Committee of
the House of Commons, appointed, 1819, to examine and report on the
petition of several inhabitants of London, complaining of the high price
and inferior quality of beer, produced the following seized
articles:--"One bladder of honey, one bladder of extract of cocculus
indicus, ground guinea pepper or capsicum, vitriol or copperas, orange
powder, quassia, ground beer-heading, hard multum, another kind of
multum or beer preparation, liquorice powder, and ground grains of
paradise."
Witness being asked "Where did you seize these things?" Answer, "Some of
them were seized from brewers, and some of them from brewers'
druggists, within these two years past." (May 8, 1818.)
Another fraud frequently committed, both by brewers and publicans, (as
is evident from the Excise Report,) is the practice of adulterating
strong beer with small beer--This fraud is prohibited by law, since both
the revenue and the public suffer by it.[63] "The duty upon strong beer
is ten shillings a barrel; and upon table beer it is two shillings. The
revenue suffers, because a larger quantity of beer is sold as strong
beer; that is, at a price exceeding the price of table beer, without the
strong beer duty being paid. In the next place, the brewer suffers,
because the retailer gets table or mild beer, and retails it as strong
beer." The following are the words of the Act, prohibiting the brewers
mixing table beer with strong beer.
"If any common brewer shall mix or suffer to be mixed any strong beer,
or strong worts with table beer or table worts, or with water in any
guile or fermenting tun after the declaration of the quantity of such
guile shall have been made; or if he shall at any time mix or suffer to
be mixed strong beer or strong worts with table beer worts or with
water, in any vat, cask, tub, measures or utensil, not being an entered
guile or fermenting tun, he shall forfeit 200 pounds."[64]
With respect to the persons who commit this offence, Mr. Carr,[65] the
Solicitor of the Excise, observes, that "they are generally brewers who
carry on the double trade of brewing both strong and table beer. It is
almost impossible to prevent them from mixing one with the other; and
frauds of very great extent have been detected, and the parties punished
for that offence. One brewer at Plymouth evaded duties to the amount of
32,000 pounds; and other brewers, who brew party guiles of beer,
carrying on the two trades of ale and table beer brewers, where the
trade is a victualling brewer, which is different from the common
brewer, he being a person who sells only wholesale; the victualling
brewer being a brewer and also a seller by retail."
"In the neighbourhood of London," Mr. Carr continues, "more
particularly, I speak from having had great experience, from the
informations and evidence which I have received, that the retailers
carry on a most extensive fraud upon the public, in purchasing stale
table beer, or the bottoms of casks. There are a class of men who go
about and sell such beer at table-beer price to public victuallers, who
mix it in their cellars. If they receive beer from their brewers which
is mild, they purchase stale beer; and if they receive stale beer, they
purchase common table beer for that purpose; and many of the
prosecutions are against retailers for that offence." The following may
serve in proof of this statement.
_List of Brewers prosecuted and convicted from 1813 to 1819, for
adulterating Strong Beer with Table Beer._[66]
Thomas Manton and another, brewers, for mixing strong and table beer,
verdict 300_l._
Mark Morrell and another, brewers, for mixing strong and table beer,
20_l._ and costs.
Robert Jones and another, brewers, for mixing strong and table beer,
verdict 125_l._
Robert Stroad, brewer, for mixing strong and table beer, 200_l._ and
costs.
William Cobbett, brewer, mixing strong and table beer, 100_l._ and
costs.
Thomas Richard Withers, brewer, for mixing strong and table beer, 75_l._
and costs.
John Cowel, brewer, for mixing table beer with strong, 50_l._ and costs.
John Mitchell, brewer, for mixing table beer with strong, absconded.
George Lloyd and another, brewers, for mixing table beer with strong,
25_l._ and costs.
James Edmunds and another, brewers, for mixing table beer with strong,
for a long period, verdict 600_l._
John Hoffman, brewer, for mixing strong and table beer, and using
molasses, 130_l._ and costs.
Samuel Langworth, brewer, for mixing strong with stale table beer,
10_l._ and costs.
Hannah Spencer, brewer, for mixing strong with stale table beer, verdict
150_l._
Joseph Smith and others, brewers, for mixing strong and table beer.
Philip George, brewer, for mixing strong and table beer, verdict 200_l._
Joshua Row, brewer, for mixing strong and table beer, verdict 400_l._
John Drew, jun. and another, for mixing strong beer with table, 50_l._
and costs.
John Cape, brewer, for mixing strong and table beer, 250_l._ and costs.
John Williams and another, brewers, for mixing strong and table beer,
verdict 200_l._
OLD, OR ENTIRE; AND NEW, OR MILD BEER.
It is necessary to state, that every publican has two sorts of beer sent
to him from the brewer; the one is called _mild_, which is beer sent out
fresh as it is brewed; the other is called _old_; that is, such as is
brewed on purpose for keeping, and which has been kept in store a
twelve-month or eighteen months. The origin of the beer called
_entire_, is thus related by the editor of the Picture of London:
"Before the year 1730, the malt liquors in general used in London were
ale, beer, and two-penny; and it was customary to call for a pint, or
tankard, of half-and-half, _i.e._ half of ale and half of beer, half of
ale and half of two-penny. In course of time it also became the practice
to call for a pint or tankard of _three-threads_, meaning a third of
ale, beer, and two-penny; and thus the publican had the trouble to go to
three casks, and turn three cocks, for a pint of liquor. To avoid this
inconvenience and waste, a brewer of the name of Harwood conceived the
idea of making a liquor, which should partake of the same united
flavours of ale, beer, and two-penny; he did so, and succeeded, calling
it _entire_, or entire butt, meaning that it was drawn entirely from one
cask or butt; and as it was a very hearty and nourishing liquor, and
supposed to be very suitable for porters and other working people, it
obtained the name of _porter_." The system is now altered, and porter is
very generally compounded of two kinds, or rather the same liquor in two
different states, the due admixture of which is palatable, though
neither is good alone. One is _mild_ porter, and the other _stale_
porter; the former is that which has a slightly bitter flavour; the
latter has been kept longer. This mixture the publican adapts to the
palates of his several customers, and effects the mixture very readily,
by means of a machine, containing small pumps worked by handles. In
these are four pumps, but only three spouts, because two of the pumps
throw out at the same spout: one of these two pumps draws the mild, and
the other the stale porter, from the casks down in the cellar; and the
publican, by dexterously changing his hold works either pump, and draws
both kinds of beer at the same spout. An indifferent observer supposes,
that since it all comes from one spout, it is entire butt beer, as the
publican professes over his door, and which has been decided by vulgar
prejudice to be only good porter, though the difference is not easily
distinguished. I have been informed by several eminent brewers, that of
late, a far greater quantity is consumed of mild than of stale beer.
The entire beer of the modern brewer, according to the statement of C.
Barclay,[67] Esq. "consists of some beer brewed expressly for the
purpose of keeping: it likewise contains a portion of returns from
publicans; a portion of beer from the bottoms of vats; the beer that is
drawn off from the pipes, which convey the beer from one vat to another,
and from one part of the premises to another. This beer is collected and
put into vats. Mr. Barclay also states that it contains a certain
portion of brown stout, which is twenty shillings a barrel dearer than
common beer; and some bottling beer, which is ten shillings a barrel
dearer;[68] and that all these beers, united, are put into vats, and
that it depends upon various circumstances, how long they may remain in
those vats before they become perfectly bright. When bright, this beer
is sent out to the publicans, for their _entire_ beer, and there is
sometimes a small quantity of mild beer mixed with it."
The present entire beer, therefore, is a very heterogeneous mixture,
composed of all the waste and spoiled beer of the publicans--the bottoms
of butts--the leavings of the pots--the drippings of the machines for
drawing the beer--the remnants of beer that lay in the leaden pipes of
the brewery, with a portion of brown stout, bottling beer, and mild
beer.
The old or _entire_ beer we have examined, as obtained from Messrs.
Barclay's, and other eminent London brewers, is unquestionably a good
compound; but it does no longer appear to be necessary, among fraudulent
brewers, to brew beer on purpose for keeping, or to keep it twelve or
eighteen months. A more easy, expeditious, and economical method has
been discovered to convert any sort of beer into entire beer, merely by
the admixture of a portion of sulphuric acid. An imitation of the age of
eighteen months is thus produced in an instant. This process is
technically called to bring beer _forward_, or to make it _hard_.
The practice is a bad one. The genuine, old, or entire beer, of the
honest brewer, is quite a different compound; it has a rich, generous,
full-bodied taste, without being acid, and a vinous odour: but it may,
perhaps, not be generally known that this kind of beer always affords a
less proportion of alcohol than is produced from mild beer. The practice
of bringing beer _forward_, it is to be understood, is resorted to only
by fraudulent brewers.[69]
If, on the contrary, the brewer has too large a stock of old beer on his
hands, recourse is had to an opposite practice of converting stale,
half-spoiled, or sour beer, into mild beer, by the simple admixture of
an alkali, or an alkaline earth. Oyster-shell powder and subcarbonate of
potash, or soda, are usually employed for that purpose. These substances
neutralise the excess of acid, and render sour beer somewhat palatable.
By this process the beer becomes very liable to spoil.
It is the worst expedient that the brewer can practise: the beer thus
rendered _mild_, soon loses its vinous taste; it becomes vapid; and
speedily assumes a muddy grey colour, and an exceedingly disagreeable
taste.
These sophistications may be considered, at first, as minor crimes
practised by fraudulent brewers, when compared with the methods employed
by them for rendering beer noxious to health by substances absolutely
injurious.
To increase the intoxicating quality of beer, the deleterious vegetable
substance, called _cocculus indicus_, and the extract of this poisonous
berry, technically called _black extract_, or, by some, _hard multum_,
are employed. Opium, tobacco, nux vomica, and extract of poppies, have
also been used.
This fraud constitutes by far the most censurable offence committed by
unprincipled brewers; and it is a lamentable reflection to behold so
great a number of brewers prosecuted and convicted of this crime; nor is
it less deplorable to find the names of druggists, eminent in trade,
implicated in the fraud, by selling the unlawful ingredients to brewers
for fraudulent purposes.
_List of Brewers prosecuted and convicted from 1813 to 1819, for
receiving and using illegal Ingredients in their Brewings._[70]
Richard Gardner, brewer, for using adulterating ingredients, 100_l._,
judgment by default.
Stephen Webb and another, brewers, for using adulterating ingredients,
and mixing strong and table beer, verdict 500_l._
Henry Wyatt, brewer, for using adulterating ingredients, verdict 400_l._
John Harbart, retailer, for receiving adulterating ingredients, verdict
150_l._
Philip Blake and others, brewers, for using adulterating ingredients,
and mixing strong and table beer, verdict 250_l._
James Sneed, for receiving adulterating ingredients, 25_l._ and costs.
John Rewell and another, brewers, ditto, verdict 100_l._
John Swain and another, ditto, for using adulterating ingredients,
verdict 200_l._
John Ing, brewer, ditto, stayed on defendant's death.
John Hall, ditto, for receiving adulterating ingredients, 5_l._ and
costs.
John Webb, retailer, for using adulterating ingredients.
Ralph Fogg and another, brewers, for receiving and using adulterating
ingredients.
John Gray, brewer, for using adulterating ingredients, 300_l._ and
costs.
Richard Bowman, for using liquid in bladder, supposed to be extract of
cocculus, 100_l._
Richard Bowman, brewer, for ditto, 100_l._ and costs.
Septimus Stephens, brewer, for ditto, verdict 50_l._
James Rogers and another, brewer, for ditto, 220_l._ and costs.
George Moore, brewer, for using colouring, 300_l._ and costs.
John Morris, for using adulterating ingredients.
Webb and Ball, for using ginger, Guinea pepper, and brown powder, (name
unknown), 1st 100_l._ 2nd 500_l._
Henry Clarke, for using molasses, 150_l._
Kewell and Burrows, for using cocculus india, multum, &c. 100_l._
Allatson and Abraham, for using cocculus india, multum, and porter
flavour, 630_l._
Swain and Sewell, for using cocculus india, Guinea-opium, &c. 200_l._
John Ing, for using cocculus india, hard colouring, and honey, _dead_.
William Dean, for using molasses, 50_l._
John Cowell, for using Spanish-liquorice, and mixing table beer with
strong beer, 50_l._
John Mitchell, for using cocculus india, vitriol, and Guinea pepper,
_left the country_.
Lloyd and Man, for using extract of cocculus, 25_l._
John Gray, for using ginger, hartshorn shavings, and molasses, 300_l._
Jon Hoffman, for using molasses, Spanish juice, and mixing table with
strong beer, 130_l._
Rogers and Boon, for using extract of cocculus, multum, porter flavour,
&c. 220_l._
---- Betteley, for using wormwood, coriander seed, and Spanish juice,
200_l._
William Lane, brewer, for using wormwood instead of hops, 5_l._ and
costs.
* * * * *
That a minute portion of an unwholesome ingredient, daily taken in beer,
cannot fail to be productive of mischief, admits of no doubt; and there
is reasons to believe that a small quantity of a narcotic substance (and
cocculus indicus is a powerful narcotic[71]), daily taken into the
stomach, together with an intoxicating liquor, is highly more
efficacious than it would be without the liquor. The effect may be
gradual; and a strong constitution, especially if it be assisted with
constant and hard labour, may counteract the destructive consequences
perhaps for many years; but it never fails to shew its baneful effects
at last. Independent of this, it is a well-established fact, that porter
drinkers are very liable to apoplexy and palsy, without taking this
narcotic poison.
If we judge from the preceding lists of prosecutions and convictions
furnished by the Solicitor of the Excise[72], it will be evident that
many wholesale brewers, as well as retail dealers, stand very
conspicuous among those offenders. But the reader will likewise notice,
that there are no convictions, in any instance, against any of the
eleven great London porter brewers[73] for any illegal practice. The
great London brewers, it appears, believe that the publicans alone
adulterate the beer. That many of the latter have been convicted of this
fraud, the Report of the Board of Excise amply shews.--See p. 129.
The following statement relating to this subject, we transcribe from a
Parliamentary document:[74]
Mr. Perkins being asked, whether he believed that any of the inferior
brewers adulterated beer, answered, "I am satisfied there are some
instances of that."
_Question._--"Do you believe publicans do?" _Answer._--"I believe they
do." _Q._--"To a great extent?" _A._--"Yes." _Q._--"Do you believe they
adulterate the beer you sell them?" _A._--"I am satisfied there are
some instances of that."--Mr. J. Martineau[75] being asked the following
_Question._[76]--"In your judgment is any of the beer of the metropolis,
as retailed to the publican, mixed with any deleterious ingredients?"
_Answer._--"In retailing beer, in some instances, it has been."
_Question._--"By whom, in your opinion, has that been done?"
_Answer._--"In that case by the publicans who vend it."
On this point, it is but fair, to the minor brewers, to record also the
answers of some officers of the revenue, when they were asked whether
they considered it more difficult to detect nefarious practices in large
breweries than in small ones.
Mr. J. Rogers being thus questioned in the Committee of the House of
Commons,[77] "Supposing the large brewers to use deleterious or any
illegal ingredients to such an amount as could be of any importance to
their concern, do you think it would, or would not, be more easy to
detect it in those large breweries, than in small ones?" his answer was,
"more difficult to detect it in the large ones:" and witness being asked
to state the reason why, answered, "Their premises are so much larger,
and there is so much more strength, that a cart load or two is got rid
of in a minute or two." Witness "had known, in five minutes, twenty
barrels of molasses got rid of as soon as the door was shut."
Another witness, W. Wells, an excise officer,[78] in describing the
contrivances used to prevent detection, stated, that at a brewer's, at
Westham, the adulterating substances "were not kept on the premises, but
in the brewer's house; not the principal, but the working brewers; it
not being considered, when there, as liable to seizure: the brewer had a
very large jacket made expressly for that purpose, with very large
pockets; and, on brewing mornings, he would take his pockets full of the
different ingredients. Witness supposed that such a man's jacket,
similar to what he had described, would convey quite sufficient for any
brewery in England, as to _cocculus indicus_."
That it may be more difficult for the officers of the excise to detect
fraudulent practices in large breweries than in small ones, may be true
to a certain extent: but what eminent London porter brewer would stake
his reputation on the chance of so paltry a gain, in which he would
inevitably be at the mercy of his own man? The eleven great porter
brewers of this metropolis are persons of so high respectability, that
there is no ground for the slightest suspicion that they would attempt
any illegal practices, which they were aware could not possibly escape
detection in their extensive establishments. And let it be remembered,
that none of them have been detected for any unlawful practices,[79]
with regard to the processes of their manufacture, or the adulteration
of their beer.
METHOD OF DETECTING THE ADULTERATION OF BEER.
The detection of the adulteration of beer with deleterious vegetable
substances is beyond the reach of chemical analysis. The presence of
sulphate of iron (p. 134) may be detected by evaporating the beer to
perfect dryness, and burning away the vegetable matter obtained, by the
action of chlorate of pot-ash in a red-hot crucible. The sulphate of
iron will be left behind among the residue in the crucible, which when
dissolved in water, may be assayed, for the constituent parts of the
salt, namely, iron and sulphuric acid: for the former, by tincture of
galls, ammonia, and prussiate of potash; and for the latter, by muriate
of barytes.[80]
Beer, which has been rendered fraudulently _hard_ (see p. 148) by the
admixture of sulphuric acid, affords a white precipitate (sulphate of
barytes), by dropping into it a solution of acetate or muriate of
barytes; and this precipitate, when collected by filtering the mass, and
after having been dried, and heated red-hot for a few minutes in a
platina crucible, does not disappear by the addition of nitric, or
muriatic acid. Genuine old beer may produce a precipitate; but the
precipitate which it affords, after having been made red-hot in a
platina crucible, instantly becomes re-dissolved with effervescence by
pouring on it some pure nitric or muriatic acid; in that case the
precipitate is malate (not sulphate) of barytes, and is owing to a
portion of malic acid having been formed in the beer.
But with regard to the vegetable materials deleterious to health, it is
extremely difficult, in any instance, to detect them by chemical
agencies; and in most cases it is quite impossible, as in that of
cocculus indicus in beer.
METHOD OF ASCERTAINING THE QUANTITY OF SPIRIT CONTAINED IN PORTER, ALE,
OR OTHER KINDS OF MALT LIQUORS.
Take any quantity of the beer, put it into a glass retort, furnished
with a receiver, and distil, with a gentle heat, as long as any spirit
passes over into the receiver; which may be known by heating from time
to time a small quantity of the obtained fluid in a tea-spoon over a
candle, and bringing into contact with the vapour of it the flame of a
piece of paper. If the vapour of the distilled fluid catches fire, the
distillation must be continued until the vapour ceases to be set on
fire by the contact of a flaming body. To the distilled liquid thus
obtained, which is the spirit of the beer, combined with water, add, in
small quantities at a time, pure subcarbonate of potash (previously
freed from water by having been exposed to a red heat,) till the last
portion of this salt added, remains undissolved in the fluid. The spirit
will thus become separated from the water, because the subcarbonate of
potash abstracts from it the whole of the water which it contained; and
this combination sinks to the bottom, and the spirit alone floats on the
top. If this experiment be made in a glass tube, about half or
three-quarters of an inch in diameter, and graduated into 50 or 100
equal parts, the relative per centage of spirit in a given quantity of
beer may be seen by mere inspection.
_Quantity of Alcohol contained in Porter, Ale, and other kinds of Malt
Liquors._[81]
One hundred parts, by Measure, Parts of Alcohol,
contained. by Measure.
Ale, home-brewed 8,30
Ale, Burton, three Samples 6,25
Ale, Burton[82] 8,88
Ale, Edinburgh[82] 6,20
Ale, Dorchester[82] 5,50
Ale, common London-brewed, }
six samples } 5,82
Ale, Scotch, three samples 5,75
Porter, London, eight samples 4,00
Ditto, Ditto[83] 4,20
Ditto, Ditto[83] 4,45
Ditto, Ditto, bottled. 4,75
Brown Stout, four samples 5
Ditto, Ditto[83] 6,80
Small Beer, six samples 0,75
Ditto, Ditto[84] 1,28
FOOTNOTES:
[48] See pages 119, &c.
[49] Child, on Brewing Porter, p. 7.
[50] Child, on Brewing Porter, p. 16.
[51] Ibid. p. 16.
[52] "Minutes of the Committee of the House of Commons, to whom the
petition of several inhabitants of London and its vicinity, complaining
of the high price and inferior quality of beer, was referred, to examine
the matter thereof, and to report the same, with their observations
thereupon, to the House. Printed by order of the House of Commons,
April, 1819."
[53] 56 Geo. III. c. 2.
[54] Copied from the Minutes of the Committee of the House of Commons,
appointed for examining the price and quality of Beer.--See pages 18,
29, 30, 31, 36, 43.
[55] The average specific gravity of different samples of brown stout,
obtained direct from the breweries of Messrs. Barclay, Perkins, and Co.
Messrs. Truman, Hanbury, and Co. Messrs. Henry Meux and Co. and from
several other eminent London brewers, amounted to 1,022; and the average
specific gravity of porter, from the same breweries, 1,018.
[56] 2 Geo. III. c. 14, § 2.
[57] 59 Geo. III. c. 53, § 25.
[58] Copied from the Minutes of the Committee of the House of Commons,
appointed for examining the price and quality of beer, p. 19, 29, 36,
37, 43.
[59] See Minutes of the Committee of the House of Commons for reporting
on the Price and Quality of Beer, 1819, p. 29.
[60] 7 Geo. II. c. 19, § 2.
[61] See List of Publicans prosecuted and convicted for mixing table
beer with strong beer, &c. p. 129.
"Alum gives likewise a smack of age to beer, and is penetrating to the
palate."--_S. Child on Brewing._
[62] Copied from the Minutes of the Committee of the House of Commons,
appointed for examining the price and quality of beer, p. 38.
[63] See Mr. Carr's evidence in the Minutes of the House of Commons, p.
32.
[64] 42 George III, c. 38, § 12.
[65] See Minutes of the House of Commons, p. 32.
[66] Copied from the minutes of the Committee of the House of Commons,
appointed for examining the price and quality of Beer, 1819, p. 29, 36,
43.
[67] See the Parliamentary Minutes, p. 94.
[68] Mr. Barclay has not specified the relative proportions of brown
stout and of bottling beer which are introduced at such an augmentation
of expense.
[69] Mr. Child, in his Treatise on Brewing, p. 23 directs, _to make new
beer older, use oil of vitriol_.
[70] Copied from the Minutes of the Committee of the House of Commons
appointed for examining the price and quality of beer, p. 29, 36.
[71] The deleterious effect of Cocculus Indicus (the fruit of the
memispermum cocculus) is owing to a peculiar bitter principle contained
in it; which, when swallowed in minute quantities, intoxicates and acts
as poison. It may be obtained from cocculus indicus berries in a
detached state:--chemists call it picrotoxin, from +pichros+, bitter;
and +toxichon+ poison.
[72] See Minutes of the House of Commons, p. 28, 36.
[73] Messrs. Barclay, Perkins, and Co.--Truman, Hanbury and Co.--Reid
and Co.--Whitbread and Co.--Combe, Delafield, and Co.--Henry Meux, and
Co.--Calvert and Co.--Goodwin and Co.--Elliot and Co.--Taylor and
Co.--Cox, and Camble and Co.
See the Minutes, before quoted, p. 32.
[74] _Ibid._ p. 58.
[75] A partner in the brewery of Messrs. Whitbread and Co.
[76] Minutes of the House of Commons, p. 104.
[77] Minutes, before quoted, p. 22.
[78] Minutes of the House of Commons, p. 40.
[79] Minutes of the House of Commons, p. 32
[80] See a Treatise on the Use and Application of Chemical Tests, 3d
edition; Tests for Sulphuric Acid, &c.
[81] Repository of Arts, No. 2, p. 74.--1816.
[82] Copied from Professor Brande's Paper in the Philosophical
Transactions, 1811, p. 345.
[83] Result of our own Experiments, see p. 127.
[84] Professor Brande's Experiments.
_Counterfeit Tea-Leaves._
The late detections that have been made respecting the illicit
establishments for the manufacture of imitation tea leaves, arrested,
not long ago, the attention of the public; and the parties by whom these
manufactories were conducted, together with the numerous venders of the
factitious tea, did not escape the hand of justice. In proof of this
statement, it is only necessary to consult the London newspapers (the
Times and the Courier) from March to July 1818; which show to what
extent this nefarious traffic has been carried on; and they report also
the prosecutions and convictions of numerous individuals who have been
guilty of the fraud. The following are some of those prosecutions and
convictions.
HATTON GARDEN.--On Saturday an information came to be heard at
this office, before Thomas Leach, Esq. the sitting magistrate, against a
man of the name of Edmund Rhodes, charged with having, on the 12th of
August last, dyed, fabricated, and manufactured, divers large
quantities, viz. one hundred weight of sloe leaves, one hundred weight
of ash leaves, one hundred weight of elder leaves, and one hundred
weight of the leaves of a certain other tree, in imitation of tea,
contrary to the statute of the 17th of Geo. III.[85] whereby the said
Edmund Rhodes had, for every pound of such leaves so manufactured,
forfeited the sum of 5_l._ making the total of the penalties amount to
2,000_l._ The second count in the information charged the said Rhodes
with having in his possession the above quantity of sloe, ash, elder,
and other leaves, under the like penalty of 2,000_l._ The third count
charged him with having, on the said 12th of August last, in his
possession, divers quantities, exceeding six pounds weight of each
respective kind of leaves; viz. fifty pounds weight of green sloe
leaves, fifty pounds weight of green leaves of ash, fifty pounds weight
of green leaves of elder, and fifty pounds weight of the green leaves of
a certain other tree; not having proved that such leaves were gathered
with the consent of the owners of the trees and shrubs from which they
were taken, and that such leaves were gathered for some other use, and
not for the purpose of manufacturing the same in imitation of tea;
whereby he had forfeited for each pound weight, the sum of 5_l._
amounting in the whole to 1,000_l._; and, in default of payment, in each
case, subjected himself to be committed to the house of correction for
not more than twelve months, nor less than six months.
Mr. Denton, who appeared for the defendant, who was absent, said that he
was a very poor man, with a family of five children, and was only the
servant of the real manufacturer, and an ignorant man from the country,
put into the premises to carry on the business, without knowing what the
leaves were intended for. By direction of Mr. Mayo, who conducted the
prosecution, several barrels and bags, filled with the imitation tea,
were then brought into the office, and a sample from each handed round.
To the eye they seemed a good imitation of tea.
The defendant was convicted in the penalty of 500_l._ on the second
count.
_The Attorney-General against Palmer._--This was an action by the
Attorney-General against the defendant, Palmer, charging him with
having in his possession a quantity of sloe-leaves and white-thorn
leaves, fabricated into an imitation of tea.
Mr. Dauncey stated the case to the jury, and observed that the
defendant, Mr. Palmer, was a grocer. It would appear that a regular
manufactory was established in Goldstone-street. The parties by whom the
manufactory was conducted, was a person of the name of Proctor, and
another person named J. Malins. They engaged others to furnish them with
leaves, which, after undergoing a certain process, were sold to and
drank by the public as tea. The leaves, in order to be converted into an
article resembling black tea, were first boiled, then baked upon an iron
plate; and, when dry, rubbed with the hand, in order to produce that
curl which the genuine tea had. This was the most wholesome part of the
operation; for the colour which was yet to be given to it, was produced
by logwood. The green tea was manufactured in a manner more destructive
to the constitution of those by whom it was drank. The leaves, being
pressed and dried, were laid upon sheets of copper, where they received
their colour from an article known by the name of Dutch pink. The
article used in producing the appearance of the fine green bloom,
observable on the China tea, was, however, decidedly a dead poison! He
alluded to verdigris, which was added to the Dutch pink in order to
complete the operation. This was the case which he had to bring before
the jury; and hence it would appear, that, at the moment they were
supposing they were drinking a pleasant and nutritious beverage, they
were, in fact, in all probability, drinking the produce of the hedges
round the metropolis, prepared for the purposes of deception in the most
noxious manner. He trusted he should be enabled to trace to the
possession of the defendant eighty pounds weight of the commodity he had
been describing.
Thomas Jones deposed, that he knew Proctor, and was employed by him at
the latter end of April, 1817, to gather black and white thorn leaves.
Sloe leaves were the black thorn. Witness also knew John Malins, the son
of William Malins, a coffee-roaster; he did not at first know the
purpose for which the leaves were gathered, but afterwards learnt they
were to make imitation tea. Witness did not gather more than one hundred
and a half weight of these leaves; but he employed another person, of
the name of John Bagster, to gather them. He had two-pence per pound for
them. They were first boiled, and the water squeezed from them in a
press. They were afterwards placed over a slow-fire upon sheets of
copper to dry; while on the copper they were rubbed with the hand to
curl them. At the time of boiling there was a little _verdigris_ put
into the water (this applied to green tea only.) After the leaves were
dried, they were sifted, to separate the thorns and stalks. After they
were sifted, more verdigris and some Dutch pink were added. The
verdigris gave the leaves that green bloom observable on genuine tea.
The black tea went through a similar course as the green, except the
application of Dutch pink: a little verdigris was put in the boiling,
and to this was added a small quantity of logwood to dye it, and thus
the manufacture was complete. The drying operation took place on sheets
of iron. Witness knew the defendant, Edward Palmer; he took some of the
mixture he had been describing, to his shop. The first time he took some
was in May, 1817. In the course of that month, or the beginning of June,
he took four or five seven-pound parcels; when he took it there, it was
taken up to the top of the house. Witness afterwards carried some to
Russell-street, which was taken to the top of the house, about one
hundred weight and three quarters; from this quantity he carried
fifty-three pounds weight to the house of the defendant's porter, by the
desire of Mr. Malins; it was in paper parcels of seven pounds each.
John Bagster proved that he had been employed by Malins and Proctor, to
gather sloe and white-thorn leaves: they were taken to Jones's house,
and from thence to Malins' coffee-roasting premises; witness received
two-pence per pound for them; he saw the manufacturing going on, but did
not know much about it: witness saw the leaves on sheets of copper, in
Goldstone-street.
This was the case for the Crown.--Verdict for the Crown, 840_l._
_The Attorney-General against John Prentice._--This was an information
similar to the last, in which the defendant submitted to a verdict for
the Crown.
_The Attorney-General against Lawson Holmes._--In this case the
defendant submitted to a verdict for the Crown.
_The Attorney-General against John Orkney._--Thomas Jones proved that
the defendant was a grocer, and in the month of May last he carried to
his shop seven pounds of imitation tea, by the order of John Malins,
for which he received the money, viz. 15_s._ 9_d._ or 2_s._ 3_d._ per
pound.
The jury found a verdict for the Crown.--Penalties 70_l._
_The Attorney-General against James Gray._--The defendant submitted to a
verdict for the Crown.--Penalties 120_l._
_The Attorney-General against H. Gilbert, and Powel._--These defendants
submitted to a verdict.--Penalties 140_l._
_The Attorney-General against William Clarke._--This defendant also
submitted to a verdict for the Crown.
_The Attorney-General against George David Bellis._--This defendant
submitted to a verdict for the Crown.
_The Attorney-General against John Horner._--The defendant in this case
was a grocer; it was proved by Jones that he received twenty pounds of
imitation tea.--Verdict for the Crown.--Penalties 210_l._
_The Attorney-General against William Dowling._--This was a grocer.
Jones proved that he delivered seven pounds of imitation tea at Mr.
Dowling's house, and received the money for it, namely 15_s._
9_d._--Penalties 70_l._
METHOD OF DETECTING THE ADULTERATIONS OF TEA.
The adulteration of tea may be evinced by comparing the botanical
characters of the leaves of the two respective trees, and by submitting
them to the action of a few chemical tests.
The shape of the tea-leaf is slender and narrow, as shewn in this
sketch, the edges are deeply serrated, and the end or extremity is
acutely pointed. The texture of the leaf is very delicate, its surface
smooth and glossy, and its colour is a lively pale green.
[Illustration]
The sloe-leaf (and also the white-thorn leaf,) as shewn in this sketch,
is more rounded, and the leaf is obtusely pointed. The serratures or
jags on the edges are not so deep, the surface of the leaf is more
uneven, the texture not so delicate, and the colour is a dark olive
green.
[Illustration]
These characters of course can be observed only after the dried leaves
have been suffered to macerate in water for about twenty-four hours.
The leaves of some sorts of tea may differ in size, but the shape is the
same in all of them; because all the different kinds of tea imported
from China, are the produce of one species of plant, and the difference
between the green and souchong, or black tea, depends chiefly upon the
climate, soil, culture, age, and mode of drying the leaves.
Spurious black tea,[86] slightly moistened, when rubbed on a sheet of
white paper, immediately produces a blueish-black stain; and speedily
affords, when thrown into cold water, a blueish-black tincture, which
instantly becomes reddened by letting fall into it, a drop or two of
sulphuric acid.
Two ounces of the suspected leaves, should be infused in half-a-pint of
cold, soft water, and suffered to stand for about an hour. Genuine tea
produces an amber-coloured infusion, which does not become reddened by
sulphuric acid.
All the samples of spurious green tea (nineteen in number) which I have
examined, were coloured with carbonate of copper (a poisonous
substance,) and not by means of verdigris, or copperas.[87] The latter
substances would instantly turn the tea black; because both these
metallic salts being soluble in water, are acted on by the astringent
matter of the leaves, whether genuine or spurious, and convert the
infusion into ink.
Tea, rendered poisonous by carbonate of copper, speedily imparts to
liquid ammonia a fine sapphire blue tinge. It is only necessary to shake
up in a stopped vial, for a few minutes, a tea-spoonful of the suspected
leaves, with about two table-spoonsful of liquid ammonia, diluted with
half its bulk of water. The supernatant liquid will exhibit a fine blue
colour, if the minutest quantity of copper be present.
Green tea, coloured with carbonate of copper, when thrown into water
impregnated with sulphuretted hydrogen gas, immediately acquires a black
colour. Genuine green tea suffers no change from the action of these
tests.
The presence of copper may be further rendered obvious, by mixing one
part of the suspected tea-leaves, reduced to powder, with two or three
parts of nitrate of potash, (or with two parts of chlorate of potash,)
and projecting this mixture by small portions at a time, into a platina,
or porcelain-ware crucible, kept red-hot in a coal fire; the whole
vegetable matter of the tea leaves will thus become destroyed, and the
oxide of copper left behind, in combination with the potash, of the
nitrate of potash (or salt-petre,) or with the muriate of potash, if
chlorate of potash has been employed.
If water, acidulated with nitric acid, be then poured into the crucible
to dissolve the mass, the presence of the copper may be rendered
manifest by adding to the solution, liquid ammonia, in such quantity
that the pungent odour of it predominates.
FOOTNOTES:
[85] Also, 2 Geo. I, c. 30, § 5; and 4 Geo. II, c. 14, § 11.
[86] The examination of twenty-seven samples of imitation tea of
different qualities, from the most costly, to the most common, which it
fell to my lot to undertake, induces me to point out the marks of
sophistications here detailed, as the most simple and expeditious.
[87] Mr. Twining, an eminent tea-merchant, asserts, that "the leaves of
spurious tea are boiled in a copper, with copperas and sheep's
dung."--See Encyclop. Britan. vol. xviii. p. 331. 1797. See also the
History of the Tea Plant, p. 48; and p. 167 of this Treatise.
_Counterfeit Coffee._
The fraud of counterfeiting ground coffee by means of pigeon's beans and
pease, is another subject which, not long ago, arrested the attention of
the public: and from the numerous convictions of grocers prosecuted for
the offence, it is evident that this practice has been carried on for a
long time, and to a considerable extent.
The following statement exhibits some of the prosecutions, instituted by
the Solicitor of the Excise, against persons convicted of the fraud of
manufacturing spurious, and adulterating genuine coffee.
Alexander Brady, a grocer, (_See p. 182_) prosecuted and convicted of
selling _sham-coffee_, said, "I have sold it for twenty years." Some of
the persons prosecuted by the Solicitor of the Excise for this fraud, we
might, at first sight, be inclined to believe, were inconscious that the
adulterating of genuine coffee with spurious substances was illegal; but
this ignorance affords no excuse, as the Act of the 43 Geo. III. cap.
129, explicitly states: "If after the first day of September, 1803, any
burnt, scorched, or roasted pease, beans, or other grain, or vegetable
substance or substances prepared or manufactured for the purpose of
being in imitation of or in any respect to resemble coffee or cocoa, or
to serve as a substitute for coffee or cocoa, or alleged or pretended by
the possessor or vender thereof so to be, _shall be made_, or kept for
sale, or shall be _offered_ or _exposed to sale_, or shall be _found_ in
the custody or possession of any _dealer_ or dealers in or _seller_ or
sellers of _coffee_, or if any burnt, scorched, or roasted pease, beans,
or other grain, or vegetable substance or substances not being coffee,
shall be called by the preparer, manufacturer, possessor, or vender
thereof, by the name of _English_ or _British_ coffee, or _any other
name_ of coffee, or by the name of _American_ cocoa, or _English_ or
_British_ cocoa, or any other name of cocoa, the same respectively shall
be forfeited, together with the packages containing the same, and shall
and may be seized by any officer or officers of Excise; and the person
or persons preparing, manufacturing, or selling the same, or having the
same in his, her, or their custody or possession, or the dealer or
dealers in or seller or sellers of coffee or cocoa, in whose custody
the same shall be found, shall forfeit and lose the sum of one hundred
pounds."
_The Attorney-General against William Malins._--This was an information
filed by the Attorney-General against the defendant, charging him, he
being a dealer in coffee, with having in his possession a large quantity
of imitation coffee, made from scorched pease and beans, resembling
coffee, and intended to be sold as such, contrary to the statute of the
43d of the King, whereby he became liable to pay a fine of 100_l._
J. Lawes deposed that he had lived servant with the defendant; he
constantly roasted pease and beans, and ground them into powder. When so
ground, the powder very much resembled coffee. Sometimes the sweepings
of the coffee were thrown in among the pease and beans. Witness carried
out this powder to several grocers in different parts of the town.
Thomas Jones lived with the defendant. His occupation was roasting and
grinding pease and beans. They looked, when ground, the same as coffee.
Witness had seen Mr. John Malins sweep up the refuse coffee, and mix it
with the pease and beans. He had taken out this mixture to grocers.
J. Richardson, an excise-officer, deposed, that, in December 1817, he
went to the premises of the defendant, and there seized four sacks, five
tubs, and nine pounds in paper, of a powder made to resemble coffee. The
quantity ground was 1,567 pounds; it had all the appearance of coffee;
and a little coffee being mixed with it, any common person might be
deceived. He also seized two sacks, containing 279 pounds of whole pease
and beans roasted. Among the latter were some grains of coffee. The
witness here produced samples of the articles seized.
John Lawes deposed, that the articles exhibited were such as he was in
the habit of manufacturing while in Mr. Malins' employment.
The jury found a verdict for the Crown.--Penalty 100_l._
_The King against Chaloner._--Mr. Chaloner, a dealer in tea and coffee,
was charged on the oaths of Charles Henry Lord and John Pearson, both
Excise officers, with having in his possession, on the 17th of March,
nine pounds of spurious coffee, consisting of burnt pease, beans, and
gravel or sand, and a portion of coffee, and with selling some of the
same; also with having in his possession seventeen pounds of vegetable
powder, and an article imitating coffee, which contained not a particle
of genuine coffee.
The defendant was convicted in the penalty of 90_l._
_The King against Peether._--This was an information against Mr. Thomas
Peether, tea and coffee dealer, charging him with having in his
possession a quantity of imitation coffee (or vegetable powder) on the
25th of April last.
The case being proved by the evidence of several witnesses, the
defendant was convicted in the penalty of 50_l._
_The King against Topping._--This was an information against Mr. John
Lewis Topping, a dealer in tea and coffee, charging him with having
thirty-seven pounds of vegetable powder in his possession. The article
seized was produced to the commissioners of the Excise.
The defendant was convicted in the penalty of 50_l._
_The King against Samuel Hallett._--The defendant, Hallett, a grocer and
dealer in tea and coffee, was charged with having seven pounds of
imitation coffee in his possession.
Charles Henry Lord, an officer of the Excise, being sworn, stated, that
he and Spencer, an officer, went, on the 28th of February last, to the
shop of the defendant, and asked for an ounce of coffee, at three
halfpence per ounce. He received the same, and having paid for it, left
the shop. He examined the article, and found it was part coffee, and
part imitation coffee, or what the defendant called vegetable powder,
which is nothing more nor less than burnt pease and beans ground in a
mill.
Spencer, the officer of the Excise, corroborated the above evidence, and
stated, that the sham-coffee seized at the defendant's house was shown
to Mr. Joseph Hubbard, grocer, and tea and coffee dealer, in
High-street, in the Borough of Southwark.
Mr. Hubbard being sworn, stated, that he had examined the sham-coffee
seized by the officers in the defendant's shop. The one ounce purchased
by Lord, he knew to be nothing else than black pigeon's beans; there was
no coffee amongst it.
The defendant was convicted in the penalty of 50_l._
_The King against Fox._--Mr. Edward Fox, grocer, and dealer in tea and
coffee, was charged with having a large quantity of sham-coffee in his
possession, and with selling the same for genuine coffee.
Henry Spencer, an officer of the Excise, stated, that on the 21st of
February he and Lord, another officer, went to the defendant's shop and
purchased an ounce of coffee, for which he paid three halfpence. They
examined it, and he was satisfied it was not genuine coffee; they
purchased another ounce (which he produced to the commissioners of the
Excise, who examined it); they were convinced it consisted partly of
coffee and beans and pease.
The defendant, in his defence said, that the poor people wanted a
low-price article; and by mixing the vegetable powder and coffee
together, he was able to sell it at three halfpence an ounce; he had
sold it for years; he did it as a matter of accommodation to the poor,
who could not give a higher price; he did not sell it for genuine
coffee.
_Commissioner._--"Then you have been defrauding the public for many
years, and injuring the revenue by your illicit practices: the poor have
an equal right to be supplied with as genuine an article as the rich."
He was convicted in the penalty of 50_l._
_The King against Brady._--The defendant, Mr. Alexander Brady, grocer,
and dealer in tea and coffee, was charged with having, on the 28th of
February last, in his possession eighteen pounds of sham-coffee, and
selling the same for genuine coffee.
Lord and Pearson, Excise officers, stated, that they purchased an ounce
of coffee of the defendant, on the 28th of February, and upon examining
it they discovered that it was made up of pease and beans, ground with a
small quantity of coffee. They also found eighteen pounds of vegetable
powder mixed with coffee, in a state prepared for sale, wrapped in
papers.
One of the commissioners tasted some of the eighteen pounds of
sham-coffee produced by the officers, and declared that it was a most
infamous stuff, and unfit for human food.
_Defendant._--"Why, I have sold it for twenty years."
_Commissioner._--"Then you have been for twenty years acting most
dishonestly, defrauding the revenue; and the health of the poor must
have suffered very much by taking such an unwholesome article. Your
having dealt in this article so long aggravates your case; you have for
twenty years been selling burnt beans and pease for genuine coffee.--You
are convicted in the penalty of 50_l._"
_The King against Bowser._--The excise officers stated, that on the 28th
of February they went to his shop: he was a grocer, dealer in tea and
coffee; they seized seven pounds and a half of vegetable powder, which
contained very little coffee, if any; and also a quarter of a pound of
coffee mixed with vegetable powder.
The defendant pleaded guilty to the charge, and prayed the court to
mitigate the penalty. He was convicted in the penalty of 50_l._
_The King against Thomas Owen._--The defendant, an extensive dealer in
tea and coffee, appeared to an information charging him with having in
his possession, and selling, a quantity of deleterious ingredients, and
mixing them with coffee.
Charles Henry Lord deposed, that on the 26th of February, he found, at
the shop of the defendant, nineteen pounds of a composition consisting
of beans and pease ground, and prepared so as to imitate coffee. He also
discovered two pounds and a half of a mixture of coffee and vegetable
powder. On the same day he proceeded to another shop of the defendant,
and he there found five pounds more of the same stuff.
Samples of the composition, in its mixed and unmixed state, were
produced.
Mr. Lawes addressed the commissioners on behalf of the defendant, in
mitigation of punishment; for he did not mean to deny the offence. His
client was a very young man, and had been most unfortunate in business.
He was not aware until lately of the existence of any law by which it
could be punished.
The Commissioners observed, that they had a double duty to perform,
namely, to protect the revenue from fraud, and to prevent the public
from being imposed upon and injured by ingredients served to them
instead of the food they intended to purchase. The fraud upon the
revenue was, in the estimation of the court, the least part of the
offence. Under all the circumstances, however, the court was inclined to
be lenient to the defendant.
He was convicted in the penalty of 50_l._ for each quantity of
sham-coffee.
Mr. Greely and Mr. William Dando were fined 20_l._ each; and Mr. Hirling
and Mr. Terry were fined 90_l._ each for selling spurious coffee.
The adulteration of ground coffee, with pease and beans, is beyond the
reach of chemical analysis; but it may, perhaps, not be amiss on this
occasion to give to our readers a piece of advice given by a retired
grocer to a friend, at no distant period:--"Never, my good fellow," he
said, "purchase from a grocer any thing which passes through his mill.
You know not what you get instead of the article you expect to
receive--coffee, pepper, and all-spice, are all mixed with substances
which detract from their own natural qualities."--Persons keeping mills
of their own can at all times prevent these impositions.
_Adulteration of Brandy, Rum, and Gin._
By the Excise laws at present existing in this country, the various
degrees of strength of brandy, rum, arrack, gin, whiskey, and other
spiritous liquors, chiefly composed of little else than spirit of wine,
are determined by the quantity of alcohol of a given specific gravity
contained in the spiritous liquors of a supposed unknown strength. The
great public importance of this subject in this country, where the
consumption of spiritous liquors adds a vast sum to the public revenue,
has been the means of instituting many very interesting series of
experiments on this subject. The instrument used for that purpose by the
Customs and officers of Excise, is called _Sikes_'s hydrometer,[88]
which has now superseded the instrument called _Clark_'s hydrometer,
heretofore in use.
The specific gravity or strength of the legal standard spirit of the
Excise, is technically called _proof_ or _proof spirit_. "This liquor
(not being spirit sweetened, or having any ingredient dissolved in it,
to defeat the strength thereof,) at the temperature of 57° Faht. weighs
exactly 12/13th parts of an equal measure of distilled water;" and with
this spirit the strength of all other spiritous liquors are compared
according to law.
The strength of spirit stronger than _proof_ or _over proof_, as it is
termed by the revenue officers, is indicated by the bulk of water
necessary to reduce a given volume of it, to the legal standard spirit,
denominated _proof_--namely; if one gallon of water be required to bring
twenty gallons of brandy, rum, or any other spirit, to proof, that
spirit is said to be _1 to 20 over proof_. If one gallon of water be
required to bring 15, 10, 5, or 2 gallons of the liquor to _proof_, it
is said to be 1 to 15, 1 to 10, 1 to 5, and 1 to 2, _over proof_.
The strength of brandy, rum, arrack, gin, or other spiritous liquors,
weaker than _proof_, or under _proof_, is estimated by the quantity of
water which would be necessary to abstract or bring the spirit up to
proof.
Thus, if from twenty gallons of brandy one gallon of water must be
abstracted to bring it to proof, it is said to be 1 in 20 under proof.
If from 15, 10, 5, or 2 gallons of the liquor, 1 gallon of water must be
abstracted to bring it to proof, it is said to be 1 in 15, 1 in 10, 1 in
5, and 1 in 2 under proof.
It is necessary to understand this absurd language, which is in use
amongst the officers of Excise and dealers in spirit, in order to know
what is meant in commerce by the strength of spiritous liquors of
different denominations. And hence, for the business of the exciseman, a
table has been constructed, expressing the strength or specific gravity
of mixtures of different proportions of spirit and water, at different
degrees of temperature; and according to this table the duty on spirit
is now levied.
Brandy and rum is seizable, if sold by, or found in the possession of,
the dealer, unless it possesses a certain strength.[89] The following
are the words of the Act:
"No distiller, rectifier,[90] compounder or dealer, shall serve or send
out any foreign spirits, of a lower strength than that of 1 in 6 under
hydrometer proof,[91] nor have in his possession any foreign spirits
mixed together, except shrub, cherry or raspberry brandy, of lower
strength than as aforesaid, upon pain of such spirits being forfeited;
and such spirits, with the casks and vessels containing the same, may be
seized by any officer of Excise."
We have, therefore, a ready check against the frauds of the dishonest
dealers, in spiritous liquors. If the spirit merchant engages to deliver
a liquor of a certain strength, the hydrometer is by far the most easy
and expeditious check that can be adopted to guard against frauds of
receiving a weaker liquor for a stronger one; and to those individuals
who are in the habit of purchasing large quantities of brandy, rum, or
other spiritous liquors, the hydrometer renders the greatest service.
For it is by no means an uncommon occurrence to meet with brandy, rum,
and other spiritous liquors, of a specific gravity very much below the
pretended strength which the liquor ought to possess.
The following advice, given to his readers,[92] by the author of a
Treatise on Brewing and Distilling, may serve to put the unwary on their
guard against some of the frauds practised by mercenary dealers.
"It is a custom among retailing distillers, which I have not taken
notice of in this directory, to put one-third or one-fourth part of
proof molasses brandy, proportionably, to what rum they dispose of;
which cannot be distinguished, but by an extraordinary palate, and does
not at all lessen the body or proof of the goods; but makes them about
two shillings a gallon cheaper; and must be well mixed and incorporated
together in your retailing cask; but you should keep some of the best
rum, not adulterated, to please some customers, whose judgment and
palate must be humoured."
"When you are to draw a sample of goods to shew a person that has
judgment in the proof, do not draw your goods into a phial to be tasted,
or make experiment of the strength thereof that way, because the proof
will not hold except the goods be exceedingly strong; but draw the
pattern of goods rather into a glass from the cock, to run very small,
or rather draw off a small quantity into a little pewter pot and pour it
into your glass, extending your pot as high above the glasses as you can
without wasting it, which makes the goods carry a better head
abundantly, than if the same goods were to be put and tried in a phial."
"You must be so prudent as to make a distinction of the persons you have
to deal with; what goods you sell to gentlemen for their own use, who
require a great deal of attendance, and as much for time of payment, you
must take a considerably greater price than of others; what goods you
sell to persons where you believe there is a manifest, or at least some
hazard of your money, you may safely sell for more than common profit;
what goods you sell to the poor, especially medicinally, (as many of
your goods are sanative,) be as compassionate as the cases require."
"All brandies, whether French, Spanish, or English; being proof goods,
will admit of one point of _liquor_[93] to each gallon, to be made up
and incorporated therewith in your cask, for retail, or selling smaller
quantities; and all persons that insist upon having proof goods, which
not one in twenty understands, you must supply out of what goods are not
so reduced, though at a higher price."
Such is the advice given by Mr. Shannon.
The mode of judging by the taste of spiritous liquors is deceitful. A
false strength is given to a weak liquor, by infusing in it acrid
vegetable substances, or by adding to it a tincture of grains of
paradise and Guinea pepper. These substances impart to weak brandy or
rum, an extremely hot and pungent taste.
Brandy and rum is also frequently sophisticated with British molasses,
or sugar-spirit, coloured with burnt sugar.
The flavour which characterises French brandy, and which is owing to a
small portion of a peculiar essential oil contained in it, is imitated
by distilling British molasses-spirit over wine lees;[94] but the
spirit, prior to being distilled over wine lees, is previously
deprived, in part, of its peculiar disagreeable flavour, by
rectification over fresh burnt charcoal and quick-lime. Other
brandy-merchants employ a spirit obtained from raisin wine, which is
suffered to pass into an incipient ascescency. The spirit thus procured
partakes strongly of the flavour which is characteristic to foreign
brandy.
Oak saw-dust, and a spiritous tincture of raisin stones, are likewise
used to impart to new brandy and rum a _ripe taste_, resembling brandy
or rum long kept in oaken casks, and a somewhat oily consistence, so as
to form a durable froth at its surface, when strongly agitated in a
vial. The colouring substances are burnt sugar, or molasses; the latter
gives to imitative brandy a luscious taste, and fulness _in the mouth_.
These properties are said to render it particularly fit for the retail
London customers.
The following is the method of compounding or _making up_, as it is
technically called, _brandy_[95] for retail:
Gallons
"To ten puncheons of brandy 1081
Add flavoured raisin spirit 118
Tincture of grains of paradise 4
Cherry laurel water 2
Spirit of almond cakes 2
-------
1207
"Add also 10 handfuls of oak saw-dust; and give it _complexion_ with
burnt sugar."
METHOD OF DETECTING THE ADULTERATIONS OF BRANDY, RUM, AND MALT SPIRIT.
The false strength of brandy or rum is rendered obvious by diluting the
suspected liquor with water; the acrimony of the capsicum, and grains of
paradise, or pepper, may then be readily discovered by the taste.
The adulteration of brandy with British molasses, or sugar-spirit,
becomes evident by rubbing a portion of the suspected brandy between
the palms of the hands; the spirit, as it evaporates, leaves the
disagreeable flavour which is peculiar to all British spirits. Or the
liquor may be deprived of its alcohol, by heating a portion in a spoon
over a candle, till the vapour ceases to catch fire on the approach of a
lighted taper. The residue thus obtained, of genuine French brandy,
possesses a vinous odour, still resembling the original flavour of the
brandy, whilst the residue, produced from sophisticated brandy, has a
peculiarly disagreeable smell, resembling gin, or the breath of habitual
drunkards.
Arrack is coarsely imitated by adding to rum a small quantity of
pyroligneous acid and some flowers (acid) of benzoe. The compound thus
produced, however, must be pronounced a bad one. The author of a very
popular Cookery Book,[96] directs two scruples of benzoic acid to be
dissolved in one quart of rum, to make "_mock arrack_."
MALT SPIRIT.
Malt spirit, or gin, the favourite liquor of the lower order of people,
which is characterised by the peculiar flavour of juniper berries, over
which the raw spirit is distilled, is usually obtained from a mixture of
malt and barley: sometimes both molasses and corn are employed,
particularly if there be a scarcity of grain. But the flavour of
whiskey, which is made from barley and oats, is owing to the malted
grain being dried with peat, the smoke of which gives it the
characteristic taste.
The malt distiller is not allowed to furnish, under a heavy penalty, any
crude or raw spirit to the rectifier or manufacturer of gin, of a
greater strength than seven per cent. over proof. The rectifier who
receives the spirit from the malt distiller is not allowed, under a
certain penalty, to sweeten the liquor with sugar or other substances;
nor is he permitted to send out the spirit to his customers but of a
certain strength, as is obvious from the following words of the Act:
"No rectifier or compounder shall sell or send out any British brandy,
British rectified spirits, British compounds, or other British spirits,
of greater strength than that of one in five under hydrometer proof[97]:
and if he shall sell and send out any such spirits of a greater strength
than that of one in five under hydrometer proof, such spirits, with the
casks or vessels containing the same, shall be forfeited, and may be
seized by any officer of Excise; and he shall also forfeit treble the
value of such spirit, or 50_l._ at the election of the King's
attorney-general, or the person who shall sue for the same; the single
value of such spirits to be estimated at the highest London Price.[98]"
If we examine gin, as retailed, we shall soon be convinced that it is a
custom, pretty prevalent amongst dealers, to weaken this liquor
considerably with water, and to sweeten it with sugar. This fraud may
readily be detected by evaporating a quantity of the liquor in a
table-spoon over a candle, to dryness; the sugar will thus be rendered
obvious, in the form of a gum-like substance, when the spirit is
volatilised.
One hundred and twenty gallons of genuine gin, as obtained from the
wholesale manufactories, are usually _made up_ by fraudulent retailers,
into a saleable commodity, with fourteen gallons of water and twenty-six
pounds of sugar. Now this dilution of the liquor produces a turbidness;
because the oil of juniper and other flavouring substances which the
spirit holds in solution, become precipitated by virtue of the water,
and thus cause the liquor to assume an opaline colour: and the spirit
thus weakened, cannot readily be rendered clear again by subsidence.
Several expedients are had recourse to, to clarify the liquor in an
expeditious manner; some of which are harmless; others are criminal,
because they render the liquor poisonous.
One of the methods, which is innocent, consists in adding to the
weakened liquor, first, a portion of alum dissolved in water, and then a
solution of sub-carbonate of potash. The whole is stirred together, and
left undisturbed for twenty-four hours. The precipitated alumine thus
produced from the alum, by virtue of the sub-carbonate of potash, acts
as a strainer upon the milky liquor, and carries down with it the finely
divided oily matter which produced the blue colour of the diluted
liquor. Roach, or Roman alum, is also employed, without any other
addition, for clarifying spiritous liquors.
"_To reduce unsweetened Gin._[99]
"A tun of fine gin 252 gallons
"Water 36
-----
"Which added together make 288 gallons
"The _doctor is now put_ on,
and it is further reduced
with water 19
-----
"Which gives Total 307 gallons of gin.
"This done, let 1 lb. of alum be just covered with water, and dissolved
by boiling; rummage the whole well together, and pour in the alum, and
the whole will be fine in a few hours."
"_To prepare and sweeten British Gin._[100]
"Get from your distiller an empty puncheon or cask, which will contain
about 133 gallons. Then take a cask of clear rectified spirits, 120
gallons, of the usual strength as rectifiers sell their goods at, put
the 120 gallons of spirits into your empty cask.
"Then take a quarter of an ounce of oil of vitriol, half an ounce of
oil of almonds, a quarter of an ounce of oil of turpentine, one ounce of
oil of juniper berries, half a pint of spirit of wine, and half a pound
of lump sugar. Beat or rub the above in a mortar. When well rubbed
together, have ready prepared half a gallon of lime water, one gallon of
rose water; mix the whole in either a pail, or cask, with a stick, till
every particle shall be dissolved; then add to the foregoing,
twenty-five pounds of sugar dissolved in about nine gallons of rain or
Thames water, or water that has been boiled, mix the whole well
together, and stir them carefully with a stick in the 133 gallons cask.
"To _force down_ the same, take and boil eight ounces of alum in three
quarts of water, for three quarters of an hour; take it from the fire,
and dissolve by degrees six or seven ounces of salt of tartar. When the
same is milk-warm pour it into your gin, and stir it well together, as
before, for five minutes, the same as you would a butt of beer newly
fined. Let your cask stand as you mean to draw it. At every time you
purpose to sweeten again, that cask must be well washed out; and take
great care never to shake your cask all the while it is drawing."
Another method of fining spiritous liquors, consists in adding to it,
first, a solution of sub-acetate of lead, and then a solution of alum.
This practice is highly dangerous, because part of the sulphate of lead
produced, remains dissolved in the liquor, which it thus renders
poisonous. Unfortunately, this method of clarifying spiritous liquors, I
have good reason to believe, is more frequently practised than the
preceding method, because its action is more rapid; and it imparts to
the liquor a fine _complexion_, or great refractive power; hence some
vestiges of lead may often be detected in malt spirit.
The weakened spirit is then sweetened with sugar, and, to cover the raw
taste of the malt spirit, _false strength_ is given to it with grains of
paradise, Guinea pepper, capsicum, and other acrid and aromatic
substances.
METHOD OF DETECTING THE PRESENCE OF LEAD IN SPIRITOUS LIQUORS.
The presence of lead may be detected in spiritous liquors, as stated on
pages 70 and 86. The cordial called shrub frequently exhibits vestiges
of copper. This contamination, I have been informed, is accidental, and
originates from the metallic vessels employed in the manufacture of the
liquor.
METHOD OF ASCERTAINING THE QUANTITY OF ALCOHOL IN DIFFERENT KINDS OF
SPIRITOUS LIQUORS.
The quantity of real alcohol in any spiritous liquors may readily be
ascertained by simple distillation, which process separates the alcohol
from the water and foreign matters contained in the liquor. Put any
quantity of brandy, rum, or malt spirit diluted with about one-fourth
its bulk of water, into a retort fitted to a capacious receiver, and
distil with a gentle heat. The strongest spirit distils over first into
the receiver, and the strength of the obtained products decreases, till
at last it contains so much water as no longer to be inflammable by the
approach of a lighted taper, when held in a spoon over a candle (see p.
160.) If the process be continued, the distilled product becomes milky,
scarcely spiritous to the smell, and of an acidulous taste. The
distilling operation may then be discontinued. If the first, fourth or
third part of the distilled product has been set apart, it will be
found a moderately strong alcohol, and the remainder one more diluted.
If the whole distilled spirit be mixed with perfectly dry subcarbonate
of potash, the alcohol will float at the top of the potash, as stated,
p. 161; it will separate into two distinct fluids. If the decanted
alcohol be redistilled carefully with a very gentle heat, over a small
portion of dry quick lime, or muriate of lime, it will be obtained
extremely pure, and of a specific gravity of about 825, at 60° of
temperature. Its flavour will vary according to the kind of spiritous
liquor from which it is obtained.
_Table exhibiting the Per Centage of Alcohol (of 825 specific gravity)
contained in various kinds of spiritous Liquors._[101]
Proportion of
Alcohol per Cent.
by Measure.
Brandy, Cogniac, average proportion of 4 samples 52,75
Ditto, Bourdeaux, ditto ditto 54,50
Ditto, Cette 53,00
Ditto, Naples, average of 3 samples 53,25
Ditto, Spanish average of 6 samples 52,28
Rum 53,68
Ditto, Leeward, average of 9 samples 53,00
Scotch Whiskey, average of 6 samples 53,50
Irish Ditto, average of 4 samples 54,25
Arrack, Batavia 49,50
Dutch Geneva 52,25
Gin (Hodges's,[102]) 3 samples, procured from retail dealers 48,25
Ditto (Ditto,)[102] procured from the manufacturer 52,35
FOOTNOTES:
[88] George III. c. xxviii. May 1818--"An Act for establishing the use
of Sikes's hydrometer in ascertaining the strength of spirit, instead of
Clark's hydrometer."
[89] Sixteen and a half per cent. proof, according to Sikes's
hydrometer.
[90] 30 Geo. III c. 37, § 31.
[91] According to Clarke's hydrometer.
[92] Observations on Malted and Unmalted Corn, connected with Brewing
and Distilling, p. 167; and Shannon on Brewing and Distilling, p. 232,
233.
[93] Water.
[94] This operation forms part of the business of the so-called brewers'
druggists. It forms the article in their Price Currents, called _Spirit
Flavour_.
Wine lees are imported in this country for that purpose: they pay the
same duty as foreign wines.
[95] Observations on Malted and Unmalted Corn, connected with Brewing
and Distilling, p. 167.
[96] Apicius Redivivus, 2d edition, p. 480.
[97] Clark's hydrometer.
[98] 30 Geo. III. c. 37, § 6.
[99] Shannon on Brewing and Distilling, p. 198.
[100] Ibid. p. 199.
[101] Repository of Arts, p. 350, Dec. 1819.
[102] Own experiment.
_Poisonous Cheese._
Several instances have come under my notice in which Gloucester cheese
has been contaminated with red lead, and has produced serious
consequences on being taken into the stomach. In one poisonous sample
which it fell to my lot to investigate, the evil had been caused by the
sophistication of the anotta, employed for colouring cheese. This
substance was found to contain a portion of red lead; a method of
sophistication which has lately been confirmed by the following fact,
communicated to the public by Mr. J. W. Wright, of Cambridge.[103]
"As a striking example of the extent to which adulterated articles of
food may be unconsciously diffused, and of the consequent difficulty of
detecting the real fabricators of them, it may not be uninteresting to
relate to your readers, the various steps by which the fraud of a
poisonous adulteration of cheese was traced to its source.
"Your readers ought here to be told, that several instances are on
record, that Gloucester and other cheeses have been found contaminated
with red lead, and that this contamination has produced serious
consequences. In the instance now alluded to, and probably in all other
cases, the deleterious mixture had been caused ignorantly, by the
adulteration of the anotta employed for colouring the cheese. This
substance, in the instance I shall relate, was found to contain a
portion of red lead; a species of adulteration which subsequent
experiments have shewn to be by no means uncommon. Before I proceed
further to trace this fraud to its source, I shall briefly relate the
circumstance which gave rise to its detection.
"A gentleman, who had occasion to reside for some time in a city in the
West of England, was one night seized with a distressing but
indescribable pain in the region of the abdomen and of the stomach,
accompanied with a feeling of tension, which occasioned much
restlessness, anxiety, and repugnance to food. He began to apprehend the
access of an inflammatory disorder; but in twenty-four hours the
symptoms entirely subsided. In four days afterwards he experienced an
attack precisely similar; and he then recollected, that having, on both
occasions, arrived from the country late in the evening, he had ordered
a plate of toasted Gloucester cheese, of which he had partaken heartily;
a dish which, when at home, regularly served him for supper. He
attributed his illness to the cheese. The circumstance was mentioned to
the mistress of the inn, who expressed great surprise, as the cheese in
question was not purchased from a country dealer, but from a highly
respectable shop in London. He, therefore, ascribed the before-mentioned
effects to some peculiarity in his constitution. A few days afterwards
he partook of the same cheese; and he had scarcely retired to rest, when
a most violent cholic seized him, which lasted the whole night and part
of the ensuing day. The cook was now directed henceforth not to serve up
any toasted cheese, and he never again experienced these distressing
symptoms. Whilst this matter was a subject of conversation in the house,
a servant-maid mentioned that a kitten had been violently sick after
having eaten the rind cut off from the cheese prepared for the
gentleman's supper. The landlady, in consequence of this statement,
ordered the cheese to be examined by a chemist in the vicinity, who
returned for answer, that the cheese was contaminated with lead! So
unexpected an answer arrested general attention, and more particularly
as the suspected cheese had been served up for several other customers.
"Application was therefore made by the London dealer to the farmer who
manufactured the cheese: he declared that he had bought the anotta of a
mercantile traveller, who had supplied him and his neighbours for years
with that commodity, without giving occasion to a single complaint. On
subsequent inquiries, through a circuitous channel, unnecessary to be
detailed here at length, on the part of the manufacturer of the cheese,
it was found, that as the supplies of anotta had been defective and of
inferior quality, recourse had been had to the expedient of colouring
the commodity with vermilion. Even this admixture could not be
considered deleterious. But on further application being made to the
druggist who sold the article, the answer was, that the vermilion had
been mixed with a portion of red lead; and the deception was held to be
perfectly innocent, as frequently practised on the supposition, that
the vermilion would be used only as a pigment for house-painting. Thus
the druggist sold his vermilion in the regular way of trade, adulterated
with red lead to increase his profit, without any suspicion of the use
to which it would be applied; and the purchaser who adulterated the
anotta, presuming that the vermilion was genuine, had no hesitation in
heightening the colour of his spurious anotta with so harmless an
adjunct. Thus, through the circuitous and diversified operations of
commerce, a portion of deadly poison may find admission into the
necessaries of life, in a way which can attach no criminality to the
parties through whose hands it has successively passed."
This dangerous sophistication may be detected by macerating a portion of
the suspected cheese in water impregnated with sulphuretted hydrogen,
acidulated with muriatic acid; which will instantly cause the cheese to
assume a brown or black colour, if the minutest portion of lead be
present.
FOOTNOTES:
[103] Repository of Arts, vol. viii. No. 47, p. 262.
_Counterfeit Pepper._
Black pepper is the fruit of a shrubby creeping plant, which grows wild
in the East Indies, and is cultivated, with much advantage, for the sake
of its berries, in Java and Malabar. The berries are gathered before
they are ripe, and are dried in the sun. They become black and
corrugated on the surface.
This factitious pepper-corns have of late been detected mixed with
genuine pepper, is a fact sufficiently known.[104] Such an adulteration
may prove, in many instances of household economy, exceedingly vexatious
and prejudicial to those who ignorantly make use of the spurious
article. I have examined large packages of both black and white pepper,
by order of the Excise, and have found them to contain about 16 per
cent. of this artificial compound. The spurious pepper is made up of
oil cakes (the residue of lintseed, from which the oil has been
pressed,) common clay, and a portion of Cayenne pepper, formed in a
mass, and granulated by being first pressed through a sieve, and then
rolled in a cask. The mode of detecting the fraud is easy. It is only
necessary to throw a sample of the suspected pepper into a bowl of
water; the artificial pepper-corns fall to powder, whilst the true
pepper remains whole.
Ground pepper is very often sophisticated by adding to a portion of
genuine pepper, a quantity of pepper dust, or the sweepings from the
pepper warehouses, mixed with a little Cayenne pepper. The sweepings are
known, and purchased in the market, under the name of P. D. signifying
pepper dust. An inferior sort of this vile refuse, or the sweepings of
P. D. is distinguished among venders by the abbreviation of D. P. D.
denoting, dust (dirt) of pepper dust.
The adulteration of pepper, and the making and selling commodities in
imitation of pepper, are prohibited, under a severe penalty. The
following are the words of the Act:[105]
"And whereas commodities made in imitation of pepper have of late been
sold and found in the possession of various dealers in pepper, and other
persons in Great Britain; be it therefore enacted, that from and after
the said 5th day of July, 1819, if any commodity or substance shall be
prepared by any person in imitation of pepper, shall be mixed with
pepper, or sold or delivered as and for, or as a substitute for, pepper,
or if any such commodity or substance, alone or mixed, shall be kept for
sale, sold, or delivered, or shall be offered or exposed to sale, or
shall be in the custody or possession of any dealer or seller of pepper,
the same, together with all pepper with which the same shall be mixed,
shall be forfeited, with the packages containing the same, and shall and
may be seized by any officer of excise; and the person preparing,
manufacturing, mixing as aforesaid, selling, exposing to sale, or
delivering the same, or having the same in his, her, or their custody or
possession, shall forfeit the sum of one hundred pounds."
WHITE PEPPER.
The common white pepper is factitious, being prepared from the black
pepper in the following manner:--The pepper is first steeped in sea
water and urine, and then exposed to the heat of the sun for several
days, till the rind or outer bark loosens; it is then taken out of the
steep, and, when dry, it is rubbed with the hand till the rind falls
off. The white fruit is then dried, and the remains of the rind blown
away like chaff. A great deal of the peculiar flavour and pungent hot
taste of the pepper is taken off by this process. White pepper is always
inferior in flavour and quality to the black pepper.
However, there is a sort of native white pepper, produced on a species
of the pepper plant, which is much better than the factitious, and
indeed little inferior to the common black pepper.
FOOTNOTES:
[104] Thomson's Annals of Chemistry, 1816; also Repository of Arts, vol.
i. 1816, p. 11.
[105] George III. c. 53, § 21, 1819.
_Poisonous Cayenne Pepper._
Cayenne pepper is an indiscriminate mixture of the powder of the dried
pods of many species of capsicum, but especially of the capsicum
frutescens, or bird pepper, which is the hottest of all.
This annual plant, a native of South America, is cultivated in large
quantities in our West-India islands, and even frequently in our
gardens, for the beauty of its pods, which are long, pointed, and
pendulous, at first of a green colour, and, when ripe, of a bright
orange red. They are filled with a dry loose pulp, and contain many
small, flat, kidney-shaped seeds. The taste of capsicum is extremely
pungent and acrimonious, setting the mouth, as it were, on fire.
The principle on which its pungency depends, is soluble in water and in
alcohol.
It is sometimes adulterated with red lead, to prevent it becoming
bleached on exposure to light. This fraud may be readily detected by
shaking up part of it in a stopped vial containing water impregnated
with sulphuretted hydrogen gas, which will cause it speedily to assume a
dark muddy black colour. Or the vegetable matter of the pepper may be
destroyed, by throwing a mixture of one part of the suspected pepper and
three of nitrate of potash (or two of chlorate of potash) into a red-hot
crucible, in small quantities at a time. The mass left behind may then
be digested in weak nitric acid, and the solution assayed for lead by
water impregnated with sulphuretted hydrogen.
_Poisonous Pickles._
Vegetable substances, preserved in the state called pickles, by means of
the antiseptic power of vinegar, whose sale frequently depends greatly
upon a fine lively green colour; and the consumption of which, by
sea-faring people in particular, is prodigious, are sometimes
intentionally coloured by means of copper. Gerkins, French beans,
samphires, the green pods of capsicum, and many other pickled vegetable
substances, oftener than is perhaps expected, are met with impregnated
with this metal. Numerous fatal consequences are known to have ensued
from the use of these stimulants of the palate, to which the fresh and
pleasing hue has been imparted according to the deadly _formulæ_ laid
down in some modern cookery books, such as boiling the pickles with
half-pence, or suffering them to stand for a considerable period in
brazen vessels.
Dr. Percival[106] has given an account of "a young lady who amused
herself, while her hair was dressing, with eating samphire pickles
impregnated with copper. She soon complained of pain in the stomach;
and, in five days, vomiting commenced, which was incessant for two days.
After this, her stomach became prodigiously distended; and, in nine days
after eating the pickles, death relieved her from her suffering."
Among many recipes which modern authors of cookery books have given for
imparting a green colour to pickles, the following are particularly
deserving of censure; and it is to be hoped that they will be suppressed
in future editions of the works.
"_To Pickle Gerkins._[107]--"Boil the vinegar in a bell-metal or copper
pot; pour it boiling hot on your cucumbers."
"_To make greening._[108]--"Take a bit of verdigris, the bigness of a
hazel-nut, finely powdered; half-a-pint of distilled vinegar, and a bit
of alum powder, with a little bay salt. Put all in a bottle, shake it,
and let it stand till clear. Put a small tea-spoonful into codlings, or
whatever you wish to green."
Mrs. E. Raffald[109] directs, "to render pickles green, boil them with
halfpence, or allow them to stand for twenty-four hours in copper or
brass pans."
To detect the presence of copper, it is only necessary to mince the
pickles, and to pour liquid ammonia, diluted with an equal bulk of
water, over them in a stopped phial: if the pickles contain the minutest
quantity of copper, the ammonia assumes a blue colour.
FOOTNOTES:
[106] Medical Transactions, vol. iv. p. 80.
[107] The Ladies' Library, vol. ii. p. 203.
[108] Modern Cookery, or the English Housewife--2d edition, p. 94.
[109] The English Housekeeper, p. 352, 354.
_Adulteration of Vinegar._
Vinegar, as prepared in this country, from malt, should be of a pale
brown colour, perfectly transparent, of a pleasant, somewhat pungent,
acid taste, and fragrant odour, but without any acrimony. From the
mucilaginous impurities which malt vinegar always contains, it is apt,
on exposure to air, to become turbid and ropy, and at last vapid. The
inconvenience is best obviated by keeping the vinegar in bottles
completely filled and well corked; and it is of advantage to boil it in
the bottles a few minutes before they are corked.
Vinegar is sometimes largely adulterated with sulphuric acid, to give it
more acidity. The presence of this acid is detected, if, on the addition
of a solution of acetate of barytes, a white precipitate is formed,
which is insoluble in nitric acid, after having been made red-hot in the
fire. (See p. 159.) With the same intention, of making the vinegar
appear stronger, different acrid vegetable substances are infused in it.
This fraud is difficult of detection; but when tasted with attention,
the pungency of such vinegar will be found to depend rather on acrimony
than acidity.
Distilled vinegar, which is employed for various purposes of domestic
economy, is frequently distilled, not in glass, as it ought to be, but
in common stills with a pewter pipe, whence it cannot fail to acquire a
metallic impregnation.
One ounce, by measure, should dissolve at least thirteen grains of white
marble.
It should not form a precipitate on the addition of a solution of
acetate of barytes, or of water saturated with sulphuretted hydrogen.
The former circumstance shews, that it is adulterated with sulphuric
acid; and the latter indicates a metal.
The metallic impregnation is best rendered obvious by sulphuretted
hydrogen, in the manner stated, page 69. The distilled vinegar of
commerce usually contains tin, and not lead, as has been asserted.
_Adulteration of Cream._
Cream is often adulterated with rice powder or arrow root. The former is
frequently employed for that purpose by pastry cooks, in fabricating
creams and custards, for tarts, and other kinds of pastry. The latter is
often used in the London dairies. Arrow-root is preferable to rice
powder; for, when converted with milk into a thick mucilage by a gentle
ebullition, it imparts to cream, previously diluted with milk, a
consistence and apparent richness, by no means unpalatable, without
materially impairing the taste of the cream.
The arrow-root powder is mixed up with a small quantity of cold skimmed
milk into a perfect, smooth, uniform mixture; more milk is then added,
and the whole boiled for a few minutes, to effect the solution of the
arrow-root: this compound, when perfectly cold, is mixed up with the
cream. From 220 to 260 grains, (or three large tea-spoonfuls) of
arrow root are added to one pint of milk; and one part of this solution
is mixed with three of cream. It is scarcely necessary to state that
this sophistication is innocuous.
The fraud may be detected by adding to a tea-spoonful of the
sophisticated cream a few drops of a solution of iodine in spirit of
wine, which instantly produces with it a dark blue colour. Genuine cream
acquires, by the addition of this test, a faint yellow tinge.
_Poisonous Confectionery._
In the preparation of sugar plums, comfits, and other kinds of
confectionery, especially those sweetmeats of inferior quality,
frequently exposed to sale in the open streets, for the allurement of
children, the grossest abuses are committed. The white comfits, called
sugar pease, are chiefly composed of a mixture of sugar, starch, and
Cornish clay (a species of very white pipe-clay;) and the red sugar
drops are usually coloured with the inferior kind of vermilion. The
pigment is generally adulterated with red lead. Other kinds of
sweetmeats are sometimes rendered poisonous by being coloured with
preparations of copper. The following account of Mr. Miles[110] may be
advanced in proof of this statement.
"Some time ago, while residing in the house of a confectioner, I
noticed the colouring of the green fancy sweetmeats being done by
dissolving sap-green in brandy. Now sap-green itself, as prepared from
the juice of the buckthorn berries, is no doubt a harmless substance;
but the manufacturers of this colour have for many years past produced
various tints, some extremely bright, which there can be no doubt are
effected by adding preparations of copper.
"The sweetmeats which accompany these lines you will find exhibit
vestiges of being contaminated with copper.--The practice of colouring
these articles of confectionery should, therefore, be banished: the
proprietors of which are not aware of the deleterious quality of the
substances employed by them."
The foreign conserves, such as small green limes, citrons, hop-tops,
plums, angelica roots, &c. imported into this country, and usually sold
in round chip boxes, are frequently impregnated with copper.
The adulteration of confitures by means of clay, may be detected by
simply dissolving the comfits in a large quantity of boiling water. The
clay, after suffering the mixture to stand undisturbed for a few days,
will fall to the bottom of the vessel; and on decanting the clear fluid,
and suffering the sediment to become dry gradually, it may be obtained
in a separate state. If the adulteration has been effected by means of
clay, the obtained precipitate, on exposure to a red heat in the bowl of
a common tobacco-pipe, acquires a brick hardness.
The presence of copper may be detected by pouring over the comfits
liquid ammonia, which speedily acquires a blue colour, if this metal be
present. The presence of lead is rendered obvious by water impregnated
with sulphuretted hydrogen, acidulated with muriatic acid (see p. 69,)
which assumes a dark brown or black colour, if lead be present.
FOOTNOTES:
[110] Philosoph. Mag. No. 258, vol. 54. 1819, p. 317.
_Poisonous Catsup._
This article is very often subjected to one of the most reprehensible
modes of adulteration ever devised. Quantities are daily to be met with,
which, on a chemical examination, are found to abound with copper.
Indeed, this condiment is often nothing else than the residue left
behind after the process employed for obtaining distilled vinegar,
subsequently diluted with a decoction of the outer green husk of the
walnut, and seasoned with all-spice, Cayenne pepper, pimento, onions,
and common salt.
The quantity of copper which we have, more than once, detected in this
sauce, used for seasoning, and which, on account of its cheapness, is
much resorted to by people in the lower walks of life, has exceeded the
proportion of lead to be met with in other articles employed in domestic
economy.
The following account of Mr. Lewis[111] on this subject, will be
sufficient to cause the public to be on their guard.
"Being in the habit of frequently purchasing large quantities of pickles
and other culinary sauces, for the use of my establishment, and also for
foreign trade, it fell lately to my lot to purchase from a manufacturer
of those commodities a quantity of walnut catsup, apparently of an
excellent quality; but, to my great surprise, I had reason to believe
that the article might be contaminated with some deleterious substance,
from circumstances which happened in my business as a tavern keeper, but
which are unnecessary to be detailed here; and it was this that induced
me to make inquiry concerning the compounding of the suspected articles.
"The catsup being prepared by boiling in a copper, as is usually
practised, the outer green shell of walnuts, after having been suffered
to turn black on exposure to air, in combination with common salt, with
a portion of pimento and pepper-dust, in common vinegar, strengthened
with some vinegar extract, left behind as residue in the still of
vinegar manufacturers; I therefore suspected that the catsup might be
impregnated with some copper. To convince myself of this opinion. I
boiled down to dryness a quart of it in a stone pipkin, which yielded
to me a dark brown mass. I put this mass into a crucible, and kept it in
a coal fire, red-hot, till it became reduced to a porous black charcoal;
on urging the heat with a pair of bellows, and stirring the mass in the
crucible with the stem of a tobacco-pipe, it became, after two hours'
exposure to an intense heat, converted into a greyish-white ash; but no
metal could be discriminated amongst it. I now poured upon it some aqua
fortis, which dissolved nearly the whole of it, with an effervescence;
and produced, after having been suffered to stand, to let the insoluble
portion subside, a bright grass-green solution, of a strong metallic
taste; after immersing into this solution the blade of a knife, it
became instantly covered with a bright coat of copper.
"The walnut catsup was therefore evidently strongly impregnated with
copper. On informing the manufacturer of this fact, he assured me that
the same method of preparing the liquor was generally pursued, and that
he had manufactured the article in a like manner for upwards of twenty
years.
"Such is the statement I wish to communicate; and if you will allow it a
place in your Literary Chronicle, it may perhaps tend to put the unwary
on their guard against the practice of preparing this sauce by boiling
it in a copper, which certainly may contaminate the liquor, and render
it poisonous."
FOOTNOTES:
[111] Literary Chronicle, No. 24, p. 379.
_Poisonous Custard._
The leaves of the cherry laurel, _prunus lauro-cerasus_, a poisonous
plant, have a nutty flavour, resembling that of the kernels of
peach-stones, or of bitter almonds, which to most palates is grateful.
These leaves have for many years been in use among cooks, to communicate
an almond or kernel-like flavour to custards, puddings, creams,
_blanc-mange_, and other delicacies of the table.
It has been asserted, that the laurel poison in custards and other
articles of cookery is, on account of its being used in very small
quantities, quite harmless. To refute this assertion, numerous instances
might be cited; and, among them, a recent one, in which four children
suffered most severely from partaking of custard flavoured with the
leaves of this poisonous plant.
"Several children at a boarding-school, in the vicinity of Richmond,
having partaken of some custard flavoured with the leaves of the cherry
laurel, as is frequently practised by cooks, four of the poor innocents
were taken severely ill in consequence. Two of them, a girl six years of
age, and a boy of five years old, fell into a profound sleep, out of
which they could not be roused.
"Notwithstanding the various medical exertions used, the boy remained in
a stupor ten hours; and the girl nine hours; the other two, one of which
was six years old, a girl, and a girl of seven years, complained of
severe pains in the epigastric region. They all recovered, after three
days' illness. I am anxious to communicate to you this fact, being
convinced that your publication is read at all the scholastic
establishments in this part of the country. I hope you will allow these
lines a corner in your Literary Chronicle, where they may contribute to
put the unwary on their guard, against the deleterious effects of
flavouring culinary dishes with that baneful herb, the Cherry Laurel.
"I am, with respect, your's, Sir,
"THOMAS LIDIARD."[112]
What person of sense or prudence, then, would trust to the discretion of
an ignorant cook, in mixing so dangerous an ingredient in his puddings
and creams? Who but a maniac would choose to season his victuals with
poison?
The water distilled from cherry laurel leaves is frequently mixed with
brandy and other spiritous liquors, to impart to them the flavour of the
cordial called _noyeau_, (see also page 195.)
This fluid, though long in frequent use as a flavouring substance, was
not known to be poisonous until the year 1728; when the sudden death of
two women, in Dublin, after drinking some of the common distilled cherry
laurel water, demonstrated its deleterious nature.
FOOTNOTES:
[112] Literary Chronicle, No. 22, p. 348.--1819.
_Poisonous Anchovy Sauce._
Several samples which we have examined of this fish sauce have been
found contaminated with lead.
The mode of preparation of this fish sauce, consists in rubbing down the
broken anchovy in a mortar: and this triturated mass, being of a dark
brown colour, receives, without much risk of detection, a certain
quantity of Venetian red, added for the purpose of colouring it, which,
if genuine, is an innocent colouring substance; but instances have
occurred of this pigment having been adulterated with orange lead, which
is nothing else than a better kind of minium, or red oxide of lead. The
fraud may be detected, as stated p. 229.
The conscientious oilmen, less anxious with respect to colour,
substitute for this poison the more harmless pigment, called Armenian
bole.
The following recipe for making this fish sauce is copied from Gray's
Supplement to the Pharmacopoeias, p. 241.
"Anchovies, 2 lbs. to 4 lbs. and a half; pulp through a fine hair sieve;
boil the bones with common salt, 7 oz. in water 6 lbs.; strain; add
flour 7 oz. and the pulp of the fish; boil; pass the whole through the
sieve; colour with Venetian red to your fancy. It should produce one
gallon."
_Adulteration of Lozenges._
Lozenges, particularly those into the composition of which substances
enter that are not soluble in water, as ginger, cremor tartar, magnesia,
&c., are often sophisticated. The adulterating ingredient is usually
pipe-clay, of which a liberal portion is substituted for sugar. The
following detection of this fraud was lately made by Dr. T. Lloyd.[113]
"Some ginger lozenges having lately fallen into my hands, I was not a
little surprised to observe, accidentally, that when thrown into a coal
fire, they suffered but little change. If one of the lozenges was laid
on a shovel, previously made red-hot, it speedily took fire; but,
instead of burning with a blaze and becoming converted into a charcoal,
it took fire, and burnt with a feeble flame for scarcely half a minute,
and there remained behind a stony hard substance, retaining the form of
the lozenge. This unexpected result led me to examine these lozenges,
which were bought at a respectable chemist's shop in the city; and I
soon became convinced, that, in the preparation of them, a considerable
quantity of common pipe-clay had been substituted for sugar. On making a
complaint about this fraud at the shop where the article was sold, I was
informed that there were two kinds of ginger lozenges kept for sale, the
one at three-pence the ounce, and the other at six-pence per ounce; and
that the article furnished to me by mistake was the cheaper commodity:
the latter were distinguished by the epithet _verum_, they being
composed of sugar and ginger only; but the former were manufactured
partly of white Cornish clay, with a portion of sugar only, with ginger
and Guinea pepper. I was likewise informed, that of Tolu lozenges,
peppermint lozenges and ginger pearls, and several other sorts of
lozenges, two kinds were kept; that the _reduced_ articles, as they were
called, were manufactured for those very clever persons in their own
conceit, who are fond of haggling, and insist on buying better bargains
than other people, shutting their eyes to the defects of an article, so
that they can enjoy the delight of getting it cheap; and, secondly for
those persons, who being but bad paymasters, yet, as the manufacturer,
for his own credit's sake, cannot charge more than the usual price of
the articles, he thinks himself therefore authorised to adulterate it in
value, to make up for the risk he runs, and the long credit he must
give."
The comfits called ginger pearls, are frequently adulterated with clay.
These frauds may be detected in the manner stated, page 225.
FOOTNOTES:
[113] Literary Gazette, No. 146.
_Poisonous Olive Oil._
This commodity is sometimes contaminated with lead, because the fruit
which yields the oil is submitted to the action of the press between
leaden plates; and it is, moreover, a practice (particularly in Spain)
to suffer the oil to become clear in leaden cisterns, before it is
brought to market for sale. The French and Italian olive oil is usually
free from this impregnation.
Olive oil is sometimes mixed with oil of poppy seeds: but, by exposing
the mixture to the freezing temperature, the olive oil freezes, while
that of the poppy seeds remains fluid; and as oils which freeze with
most difficulty are most apt to become rancid, olive oil is deteriorated
by the mixture of poppy oil.
Good olive oil should have a pale yellow colour, somewhat inclining to
green; a bland taste, without smell; and should congeal at 38°
Fahrenheit. In this country, it is frequently met with rancid.
The presence of lead is detected by shaking, in a stopped vial, one part
of the suspected oil, with two or three parts of water impregnated with
sulphuretted hydrogen. This agent will render the oil of a dark brown or
black colour, if any metal, deleterious to health, be present. The
practice of keeping this oil in pewter or leaden cisterns, as is often
the case, is objectionable; because the oil acts upon the metal. The
dealers in this commodity assert, that it prevents the oil from becoming
rancid: and hence some retailers often suffer a pewter measure to remain
immersed in the oil.
_Adulteration of Mustard._
Genuine mustard, either in powder, or in the state of a paste ready for
use, is perhaps rarely to be met with in the shops. The article sold
under the name of _genuine Durham mustard_, is usually a mixture of
mustard and common wheaten flour, with a portion of Cayenne pepper, and
a large quantity of bay salt, made with water into a paste, ready for
use. Some manufacturers adulterate their mustard with radish-seed and
pease flour.
It has often been stated, that a fine yellow colour is given to mustard
by means of turmeric. We doubt the truth of this assertion. The presence
of the minutest quantity of turmeric may instantly be detected, by
adding to the mustard a few drops of a solution of potash, or any other
alkali, which changes the bright yellow colour, to a brown or deep
orange tint.
Two ounces and a half of Cayenne pepper, 1-1/2 lbs. of bay salt, 8 lbs.
of mustard flour, and 1-1/2 lbs. of wheaten flour, made into a stiff
paste, with the requisite quantity of water, in which the bay-salt is
previously dissolved, forms the so-called _genuine Durham mustard_, sold
in pots. The salt and Cayenne pepper contribute materially to the
keeping of ready-made mustard.
There is therefore nothing deleterious in the usual practice of
adulterating this commodity of the table. The fraud only tends to
deteriorate the quality and flavour of the genuine article itself.
_Adulteration of Lemon Acid._
It is well known to every one, that the expressed juice of lemons is
extremely apt to spoil, on account of the sugar, mucilage, and
extractive matter which it contains; and hence various means have been
practised, with the intention of rendering it less perishable, and less
bulky. The juice has been evaporated to the consistence of rob; but this
always gives an unpleasant empyreumatic taste, and does not separate the
foreign matters, so that it is still apt to spoil when agitated on board
of ship in tropical climates. It has been exposed to frost, and part of
the water removed under the form of ice; but this is liable to all the
former objections; and, besides, where lemons are produced in sufficient
quantity, there is not a sufficient degree of cold. The addition of a
portion of spirit to the inspissated juice, separates the mucilage, but
not the extractive matter and the sugar. By means, however, of
separating the foreign matters associated with it, in the juice, by
chemical processes unnecessary to be detailed here, citric acid is now
manufactured, perfectly pure, and in a crystallised form, and is sold
under the name of concrete lemon acid. In this state it is extremely
convenient, both for domestic and medicinal purposes. One drachm, when
dissolved in one ounce of water, is equal in strength to a like bulk of
fresh lemon juice. To communicate the lemon flavour, it is only
necessary to rub a lump of sugar on the rind of a lemon to become
impregnated with a portion of the essential oil of the fruit, and to add
the sugar to the lemonade, negus, punch, shrub, jellies or culinary
sauces, prepared with the pure citric acid.
Fraudulent dealers often substitute the cheaper tartareous acid, for
citric acid. The negus and lemonade made by the pastry-cooks, and the
liquor called punch, sold at taverns in this metropolis, is usually made
with tartareous acid.
To discriminate citric acid from tartareous acid, it is only necessary
to add a concentrated solution of the suspected acid, to a concentrated
solution of muriate of potash, taking care that the solution of the acid
is in excess. If a precipitate ensues, the fraud is obvious, because
citric acid does not produce a precipitate with a solution of muriate
or potash.
Or, by adding to a saturated solution of tartrate of potash, a saturated
solution of the suspected acid, in excess, which produces with it an
almost insoluble precipitate in minute granular crystals. Pure citric
acid produces no such effect when added in excess to tartrate of
potash.
_Poisonous Mushrooms._
Mushrooms have been long used in sauces and other culinary preparations;
yet there are numerous instances on record of the deleterious effects of
some species of these _fungi_, almost all of which are fraught with
poison.[114] Pliny already exclaims against the luxury of his countrymen
in this article, and wonders what extraordinary pleasure there can be in
eating such dangerous food.[115]
But if the palate must be indulged with these treacherous luxuries, or,
as Seneca calls them, "voluptuous poison,"[116] it is highly necessary
that the mild eatable mushrooms, should be gathered by persons skilful
enough to distinguish the good from the false, or poisonous, which is
not always the case; nor are the characters which distinguish them
strongly marked.
The following statement is published by Mr. Glen, surgeon, of
Knightsbridge:
"A poor man, residing in Knightsbridge, took a walk in Hyde Park, with
the intention of gathering some mushrooms. He collected a considerable
number, and, after stewing them, began to eat them. He had finished the
whole, with the exception of about six or eight, when, about eight or
ten minutes from the commencement of his meal, he was suddenly seized
with a dimness, or mist before his eyes, a giddiness of the head, with a
general trembling and sudden loss of power;--so much so, that he nearly
fell off the chair; to this succeeded loss of recollection: he forgot
where he was, and all the circumstances of his case. This deprivation
soon went off, and he so far rallied as to be able, though with
difficulty, to get up, with the intention of going to Mr. Glen for
assistance--a distance of about five hundred yards: he had not proceeded
more than half way, when his memory again failed him; he lost his road,
although previously well acquainted with it. He was met by a friend, who
with difficulty learned his state, and conducted him to Mr. Glen's
house. His countenance betrayed great anxiety: he reeled about, like a
drunken man, and was greatly inclined to sleep; his pulse was low and
feeble. Mr. Glen immediately gave him an emetic draught. The poison had
so diminished the sensibility of the stomach, that vomiting did not take
place for near twenty minutes, although another draught had been
exhibited. During this interval his drowsiness increased to such a
degree, that he was only kept awake by obliging him to walk round the
room with assistance; he also, at this time, complained of distressing
pains in the calves of his legs.--Full vomiting was at length produced.
After the operation of the emetic, he expressed himself generally
better, but still continued drowsy. In the evening Mr. Glen found him
doing well."
The following case is recorded in the Medical Transactions, vol. ii.
"A middle-aged man having gathered what he called champignons, they were
stewed, and eaten by himself and his wife; their child also, about four
years old, ate a little of them, and the sippets of bread which were put
into the liquor. Within five minutes after eating them, the man began to
stare in an unusual manner, and was unable to shut his eyes. All
objects appeared to him coloured with a variety of colours. He felt a
palpitation in what he called his stomach; and was so giddy, that he
could hardly stand. He seemed to himself swelled all over his body. He
hardly knew what he did or said; and sometimes was unable to speak at
all. These symptoms continued in a greater or less degree for
twenty-four hours; after which, he felt little or no disorder. Soon
after he perceived himself ill, one scruple of white vitriol was given
him, and repeated two or three times, with which he vomited plentifully.
"The woman, aged thirty-nine, felt all the same symptoms, but in a
higher degree. She totally lost her voice and her senses, and was either
stupid, or so furious that it was necessary she should be held. The
white vitriol was offered to her, of which she was capable of taking but
very little; however, after four or five hours, she was much recovered:
but she continued many days far from being well, and from enjoying her
former health and strength. She frequently fainted for the first week
after; and there was, during a month longer, an uneasy sense of heat and
weight in her breast, stomach, and bowels, with great flatulence. Her
head was, at first waking, much confused; and she often experienced
palpitations, tremblings, and other hysteric affections, to all which
she had ever before been a stranger.
"The child had some convulsive agitations of his arms, but was otherwise
little affected. He was capable of taking half a scruple of ipecacuanha,
with which he vomited, and was soon perfectly recovered."
MUSHROOM CATSUP.
The edible mushroom is the basis of the sauce called mushroom catsup; a
great proportion of which is prepared by gardeners who grow the fungi.
The mushrooms employed for preparing this sauce are generally those
which are in a putrefactive state, and not having found a ready sale in
the market; for no vegetable substance is liable to so rapid a
spontaneous decomposition as mushrooms. In a few days after the fungus
has been removed from the dung-bed on which it grows, it becomes the
habitation of myriads of insects; and, if even the saleable mushroom be
attentively examined, it will frequently be found to swarm with life.
FOOTNOTES:
[114] Fungi plerique veneno turgent. Linn. Amæn. Acad.
[115] Quæ voluptas tanta ancipitis cibi?--Plin. Nat. Hist. xxii. 23.
[116] Sen. Ep. 95.
_Poisonous Soda Water._
The beverage called soda water is frequently contaminated both with
copper and lead; these metals being largely employed in the construction
of the apparatus for preparing the carbonated water,[117] and the great
excess of carbonic acid which the water contains, particularly enables
it to act strongly on the metallic substances of the apparatus; a truth,
of which the reader will find no difficulty in convincing himself, by
suffering a stream of sulphuretted hydrogen gas to pass through the
water.--See p. 70.
FOOTNOTES:
[117] Some manufacturers have been hence induced to construct the
apparatus for manufacturing soda water wholly either of earthenware or
of glass. Mr. Johnston, of Greek Street, Soho, was the first who pointed
out to the public the absolute necessity of this precaution.
_Food poisoned by Copper Vessels._
Many kinds of viands are frequently impregnated with copper, in
consequence of the employment of cooking utensils made of that metal. By
the use of such vessels in dressing food, we are daily liable to be
poisoned; as almost all acid vegetables, as well as sebaceous or pinguid
substances, employed in culinary preparations, act upon copper, and
dissolve a portion of it; and too many examples are met with of fatal
consequences having ensued from eating food which had been dressed in
copper vessels not well cleaned from the oxide of copper which they had
contracted by being exposed to the action of air and moisture.
The inexcusable negligence of persons who make use of copper vessels has
been productive of mortality, so much more terrible, as they have
exerted their action on a great number of persons at once. The annals of
medicine furnish too many examples in support of this assertion, to
render it necessary to insist more upon it here.
Mr. Thiery, who wrote a thesis on the noxious quality of copper,
observes, that "our food receives its quantity of poison in the kitchen
by the use of copper pans and dishes. The brewer mingles poison in our
beer, by boiling it in copper vessels. The sugar-baker employs copper
pans; the pastry-cook bakes our tarts in copper moulds; the confectioner
uses copper vessels: the oilman boils his pickles in copper or brass
vessels, and verdigris is plentifully formed by the action of the
vinegar upon the metal.
"Though, after all, a single dose be not mortal, yet a quantity of
poison, however small, when taken at every meal, must produce more fatal
effects than are generally apprehended; and different constitutions are
differently affected by minute quantities of substances that act
powerfully on the system."
The author of a tract, entitled, "Serious Reflections on the Dangers
attending the Use of Copper Vessels," asserts that a numerous and
frightful train of diseases is occasioned by the poisonous effects of
pernicious matter received into the stomach insensibly with our
victuals.
Dr. Johnston[118] gives an account of the melancholy catastrophe of
three men being poisoned, after excruciating sufferings, in consequence
of eating food cooked in an unclean copper vessel, on board the Cyclops
frigate; and, besides these, thirty-three men became ill from the same
cause.
The following case[119] is related by Sir George Baker, M. D.
"Some cyder, which had been made in a gentleman's family, being thought
too sour, was boiled with honey in a brewing vessel, the rim of which
was capped with lead. All who drank this liquor were seized with a bowel
colic, more or less violently. One of the servants died very soon in
convulsions; several others were cruelly tortured a long time. The
master of the family, in particular, notwithstanding all the assistance
which art could give him, never recovered his health; but died
miserably, after having almost three years languished under a most
tedious and incurable malady."
Too much care and attention cannot be taken in preserving all culinary
utensils of copper, in a state unexceptionably fit for their destined
purpose. They should be frequently tinned, and kept thoroughly clean,
nor should any food ever be suffered to remain in them for a longer time
than is absolutely necessary to their preparation for the table. But the
sure preventive of its pernicious effect, is, to banish copper utensils
from the kitchen altogether.
The following wholesome advice on this subject is given to cooks by the
author of an excellent cookery book.[120]
"Stew-pans and soup-kettles should be examined every time they are used;
these, and their covers, must be kept perfectly clean and well tinned,
not only on the inside, but about a couple of inches on the outside; so
much mischief arises from their getting out of repair; and, if not kept
nicely tinned, all your work will be in vain; the broths and soups will
look green and dirty, and taste bitter and poisonous, and will be
spoiled both for the eye and palate, and your credit will be lost; and
as the health, and even the life, of the family depends upon this; the
cook may be sure her employer had rather pay the tin-man's bill than
the doctor's."
The senate of Sweden, in the year 1753, prohibited copper vessels, and
ordered that none but such as were made of iron should be used in their
fleet and armies.
FOOTNOTES:
[118] Johnston's Essay on Poison, p. 102.
[119] Medical Transactions, vol. i. p. 213.
[120] Apicius Redivivus, p. 91.
_Food Poisoned by Leaden Vessels._
Various kinds of food used in domestic economy, are liable to become
impregnated with lead.
The glazing of the common cream-coloured earthen ware, which is composed
of an oxide of lead, readily yields to the action of vinegar and saline
compounds; and therefore jars and pots of this kind of stone ware, are
wholly unfit to contain jellies of fruits, marmalade, and similar
conserves. Pickles should in no case be deposited in cream-coloured
glazed earthenware.
The custom which still prevails in some parts of this country of keeping
milk in leaden vessels for the use of the dairy, is very improper.
"In Lancashire[121] the dairies are furnished with milk-pans made of
lead: and when Mr. Parks expostulated with some individuals on the
danger of this practice, he was told that _leaden_ milk-pans throw up
the cream much better than vessels of any other kind.
"In some parts of the north of England it is customary for the
inn-keepers to prepare mint-salad by bruising and grinding the vegetable
in a large wooden bowl with a _ball of lead_ of twelve or fourteen
pounds weight. In this operation the mint is cut, and portions of the
lead are ground off at every revolution of the ponderous instrument. In
the same county, it is a common practice to have brewing-coppers
constructed with the bottom of copper and the whole sides of lead."
The baking of fruit tarts in cream-coloured earthenware, and the salting
and preserving of meat in leaden pans, are no less objectionable. All
kinds of food which contain free vegetable acids, or saline
preparations, attack utensils covered with a glaze, in the composition
of which lead enters as a component part. The leaden beds of presses for
squeezing the fruit in cyder countries, have produced incalculable
mischief. These consequences never follow, when the lead is combined
with tin; because this metal, being more eager for oxidation, prevents
the solution of the lead.
When we consider the various unsuspected means by which the poisons of
lead and copper gain admittance into the human body, a very common but
dangerous instance presents itself: namely, the practice of painting
toys, made for the amusement of children, with poisonous substances,
viz. red lead, verdigris, &c. Children are apt to put every thing,
especially what gives them pleasure, into their mouths; the painting of
toys with colouring substances that are poisonous, ought therefore to be
abolished; a practice which lies the more open to censure, as it is of
no real utility.
FOOTNOTES:
[121] Park's Chemical Essays, vol. v. p. 193.
INDEX.
A
Adulteration of anchovy sauce, 234
beer, 113
brandy, 187
bread, 98
catsup, 227
cayenne pepper, 215
cheese, 206
coffee, 176
confectionery, 224
cream, 222
custard, 231
gin, 187
lemon acid, 243
lozenges, 236
malt spirits, 197
mustard, 241
olive oil, 239
pepper, 211
pickles, 217
porter, 113
rum, 187
soda water, 251
tea, black, 173
green, 173
vinegar, 173
distilled, 221
wine, 74
Age of beer, how fraudulently imitated, 148
Alcohol, quantity contained in different kinds of wine, 94
malt liquors, 126
spiritous liquors, 205
Ale, Burton, quantity of spirit which it contains, 162
Dorchester, ditto ditto, 162
Edinburgh, ditto ditto, 162
Home-brewed ditto ditto, 162
Alum, bleaching property in the panification of bread flour, 104
method of detecting it in bread, 108
for brightening muddy wines, 74
clarifying spiritous liquors, 200
adulterating beer, 134
Arrack, imitation of, 196
Batavia, quantity of alcohol contained in it, 205
Arrow root, sophistication of, 29
B
Bakers, their methods of judging of the goodness of bread flour, 111
Beer, adulteration of, 113
act prohibiting it, 114
method of detecting it, 158
with narcotic substances, 150
with opium, tobacco, &c., 150
colouring of, act prohibiting it, 123
heading, composition and use of, 134
hard, what is meant by it, 148
fraudulent method of producing it, 148
half-spoiled, fraudulent practice of recovering it, 149
illegal substances used for adulterating it, 131
old, what is meant by it, 144
quantity of spirit contained in different kinds, 160
strong, adulteration of with small beer, 140
act prohibiting it, 140
how defined by law, 128
strength of different kinds, 125
Bilberries, employed for colouring port wine, 74
Bittern, for adulterating beer, 18
Black Extract, for adulterating beer, 150
Bland, Mr. tragical catastrophe of, 81
Bouquet of high-flavoured wines, how produced, 75
Brandy, adulteration of, 187
and method of detecting it, 195
complexion of, what is meant by it, 195
Brandy flavour of, how imitated, 193
imitative, manufacture of, 194
method of compounding for retail trade, 195
quantity contained in different sorts of wine, 94
of alcohol contained in different kinds of, 205
legal strength, 190
how discovered by the Excise, 188
false strength, 195
flavour, imitative, how produced, 193
Brazil wood, application of for colouring wine, 74
Bread, adulteration of with alum, 98
methods of detecting it, 108
with potatoes, 105
goodness of, how estimated in this metropolis, 98
how rendered white and firm, 99
corn, method of judging its goodness, 110
flour, different sorts of from the same kind of grain, 99
adulteration of with bean flour, 99
process of making five bushels into bread, 102
made from new corn, improvement of, 107
method of judging of goodness, 110
Brewers, list of, prosecuted for using illegal substances in their
brewings, 151
convicted of adulterating their strong beer with table beer, 143
Druggists, 119
prosecuted for supplying illegal ingredients to brewers for
adulterating beer, 119
Breweries, illegal substances seized at various, 136
Brown Stout, quantity of spirit contained in it, 126
C
Calcavella, quantity of brandy which it contains, 95
Carbonate of ammonia, used by fraudulent bakers, 105
Catsup, adulteration of, 227
Claret, quantity of brandy which it contains, 95
Clary, used for flavouring wine, 75
Cheese, poisonous, and method of detecting it, 206
Chemists, are not permitted to sell illegal ingredients to brewers for
adulterating beer, 118
list of, convicted of this fraud, 119
Cherry-laurel water, dangerous application of for flavouring creams,
&c., 231
used in the manufacture of spurious wines, 75
in the manufacture of brandy, 195
Citric Acid, adulteration of, 244
method of detecting, 245
Cocculus indicus, nefarious application of in the brewing of beer, 18
early law prohibiting its application, 115
brewers prosecuted for using it, 152
seizures made of at different breweries, 136
narcotic property of, to what owing, 153
extract of, application in brewing, 136
Coffee, adulteration of, 176
law in force against it, 177
grocers lately convicted of selling spurious, 176
Confectionery, adulteration of, 224
methods of detecting it, 225
Conserves, contamination of with copper, 226
should never be deposited in vessels glazed with lead, 257
Constantia, quantity of spirit which it contains, 94
Copperas, or salt of steel, publicans convicted of mixing it with their
beer, 129
seizures of, at various breweries, 136
Cream, adulteration of, and mode of detecting it, 222
Custards, flavoured with cherry laurel leaves, dangerous effects from
it, 231
Cyder, melancholy catastrophe of persons drinking such as was
contaminated with lead, 254
E
Elder-berries are used for colouring port wine, 74
flowers are used for flavouring insipid white wines, 75
Entire beer, origin of its name, 144
composition of, 146
Extract of cocculus indicus is used by fraudulent brewers, 136
F
False strength, how given to wine and spiritous liquors, 19, 192
how given to vinegar, 220
Flavour of French brandy, how imitated, 194
Flour, new, of an indifferent quality, how rendered fit for being made
into good and wholesome bread, 107
different sorts, from the same kind of grain, 99
sour, practice of converting it into bread, 105
Food, rendered poisonous by copper vessels, 252
by leaden vessels, 257
Frothy head of porter, how artificially produced, 133
G
Geneva, Dutch, quantity of alcohol which it contains, 205
Gin, adulteration of, 187
quantity of alcohol contained in different sorts, 205
dangerous method of clarifying, 202
legal exactment of its saleable strength, 197
_proof_, what is meant by this term, 188
strength of, how ascertained by the Excise, 188
sweetened, fraudulent practice of composing it for sale, 200
unsweetened, ditto ditto, 200
false strength, how given, 202
H
Hermitage, quantity of brandy which it contains, 95
Hops, adulteration of, prohibited by law, 132
its chemical action upon beer, 133
Hydrometer, legal, now in use for ascertaining the strength of spiritous
liquors, 187
Hyson tea, spurious. See Tea leaves
I
Imitation arrack, 196
tea. See Tea leaves
coffee. See Coffee
L
Leaden pumps and water reservoirs, dangerous effects to be apprehended
from them, 62
Lisbon, quantity of spirit which it contains, 94
Lozenges, adulteration of, 236
Lemon acid, adulteration of, 243
method of detecting it, 244
M
Madeira, quantity of brandy which it contains, 94
Malaga, quantity of brandy contained in it, 94
Malt, patent, for colouring porter, 123
disadvantages of, 124
liquors, dangerous adulteration of, 115
strength of different kinds. See Porter, 126
spirits, adulterations of, 197
characteristic flavour, to what owing, 197
nefarious practices of compounding them for sale, 199
false strength, how given, 202
act restricting the strength of it, 197
Meat, salted, should not be preserved in leaden vessels, 258
Milk, improper practice of keeping it in leaden vessels, 257
Mint salad, pernicious custom of preparing it, 258
Multum, a substance employed for adulterating beer, 17
seizures of, at various breweries, 136
Mushroom, poisonous, 246
Catsup, 250
Mustard, adulteration of, 241
O
Oak-wood saw-dust, is used in the manufacture of spurious port wine, 75
in the manufacture of spurious brandy, 194
Orris-root, is used for flavouring insipid wines, 75
Olive oil, contamination of, with lead, and method of detecting it, 239
P
Pickles, contamination of with copper, 219
improper vessels for keeping them, 257
Pepper, black, adulteration of, 211
law in force against it, 213
Poisonous Cheese, 206
Cayenne pepper, 215
catsup, 227
custard, 231
olive oil, 239
mushroom, 246
pickles, 207
soda water, 251
Porter, origin of its name, 121
adulteration of with wormwood, 132
act prohibiting it, 113
average strength of, as furnished to the publican, 126
ditto, as sent out by the retailers, 127
illegal substances for adulterating it, 131
brewers, convicted of adulterating their porter with illegal
ingredients, 151
Porter, frothy head of, how produced, 133
method of ascertaining the strength of different kinds, 160
quantity of alcohol contained in London porter, 162
Port wine, adulteration of, 74
Publicans, prosecuted for adulterating their strong beer with table
beer, 129
Q
Quassia, fraudulent substitution of, for hops, 131
disadvantages of its application, 132
seizures of, at various breweries, 137
R
Raisin wine, quantity of brandy which it contains, 94
Rum, adulteration of, 187
false strength, how given to it, 202
is seizable, if sold, unless of a certain strength, 189
quantity of alcohol contained in it, 205
S
Soda Water, poisonous, and method of detecting it, 251
Spiritous Liquors, adulteration of, 187
dangerous practice of fining them with noxious ingredients, 202
quantity of alcohol contained in different kinds, 205
Sweetmeats, adulteration of, 224
Sweet-brier, use of it for flavouring wines, 75
T
Tarts of fruits, should not be baked in earthenware vessels glazed with
lead, 258
Tea leaves, adulteration of, 171
method of detecting it, 171
law in force against it, 163
poisonous sophistication of, 173
method of detecting it, 174
coloring of, with verdigris, 168
black, spurious, process of manufacturing it, 168
green, imitation of, 169
Tea dealers, convicted for selling adulterated tea, 169
Toys, improper practice of painting them with poisonous colours, 259
V
Vidonia, quantity of brandy contained in it, 95
Vin de Grave, ditto ditto, 95
Vinegar, adulteration of, and method of detecting it, 220
distilled, and method of ascertaining its strength, 221
W
Water, characters of good, 37
chemical constitution of those used in domestic economy and the
arts, 33
danger of keeping it in leaden reservoirs, 60
hard, how softened and rendered fit for washing, 39
New River, constitution of, 38, 45
substances contained in potable, 48
how detected, 50
substances usually contained in spring, 42
taste and salubrious quality, to what owing, 33
Thames, constitution of, 46, 48
Wine, adulteration of with alum, 74
British port, 77
champaigne, 77
bottles, improper practice of cleaning them, 85
bottle corks, practice of staining them red, 79
Wine doctors, 80
quantity of alcohol contained in various kinds, 94, 95
dangerous practice of fining them, 83
to prevent them turning sour, 84
art of flavouring them, 75
home-made, chemical constitution of, 96
improvement from age, to what owing, 91
Southampton port, 78
strength of, on what it depends, 92
specific differences of different kinds, to what owing, 89
test, 86
white, manufacture of, from red grapes, 90
Whiskey, Irish, flavour, to what owing, 197
strength of, 205
Scotch, ditto, 205
Wormwood, substitution of, for hops, 132
THE END.
TRANSCRIBER'S NOTES:
Greek words in this text have been transliterated
and placed between +marks+.
The word "Pharmacopoeias" used an "oe" ligature in the original.
Unusual spellings, variations in spellings, and variations in
hyphenation have been left as in the original. Examples include:
inpregnating
transparant
coculus/cocculus
inconscious
orris/oris root
The following corrections have been made to the text:
page iii--comma added after "beer" in "beer, pepper, and other
articles of diet"
page x--changed period to comma after "Ale" in "Method of
ascertaining the Quantity of Spirit contained in Porter, Ale, &c."
page 61--changed "where" to "were" in "When men were unable to
detect the poisonous matters"
page 62--corrected spelling of "snd" to "and" in "by Hyppocrates,
Galen, and Vitruvius"
page 78--added "t" to "yeas" and added period at end of "before it
is cold, add some yeast and ferment."
page 98--corrected spelling of "indipensable" to "indispensable" in
"degree of whiteness rendered indispensable by the caprice of the
consumers"
page 104--changed comma to period after "sufficient for a sack of
flour"
page 113--changed comma to period after "made of these ingredients
only, are entirely deceived"
page 120--corrected "Authur" to "Arthur" in "Arthur Waller" and
corrected "Dun" to "Dunn" in "John Dunn"
page 126--added period after "Co" in "Messrs. Barclay, Perkins, and
Co"
page 129--added period after "l" in "strong beer, 20l"
page 130--added comma after "Harbur" in "John Harbur, for using
salt of steel"
page 140--added ending quote mark after "of them from brewers'
druggists, within these two years past."
page 149--changed comma to period after "resorted to only by
fraudulent brewers"
page 152--changed semi-colon after "Stephens" in "Septimus
Stephens, brewer"
page 154--corrected spelling of "apolexy" to "apoplexy" in
"drinkers are very liable to apoplexy"
page 169--corrected spelling of "Malin's" to "Malins'" in "Malins'
coffee-roasting premises"
page 185--corrected spelling of "find" to "fined" in "were fined
20l. each"
page 202--added the word "on" in "as stated on pages 70 and 86"
page 210--corrected spelling of "annotta" to "anotta" in "who
adulterated the anotta"
page 222--added hyphen in "arrow-root"
page 223--added hyphen in "tea-spoonful" and corrected spelling of
"jodine" to "iodine" in "few drops of a solution of iodine"
page 227--added "s" at end of "Mr. Lewi "
page 231--corrected spelling of "cookry" to "cookery" in "articles
of cookery"
page 245--corrected spelling of "glanular" to "granular" in
"insoluble precipitate in minute granular crystals"
Footnote 46--added period after "p" in "3d edit. p. 270"
Footnote 87--added missing end quote after "with copperas and
sheep's dung." and removed extraneous period after "48" in "Plant,
p. 48;"
Footnote 115--corrected spelling of "Qvæ" to "Quæ" in "Quæ voluptas
tanta ancipitis cibi?"
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