قراءة كتاب The Food of the Gods A Popular Account of Cocoa
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of cocoa with other substances and flavourings.
"Chocolate" is, therefore, a much wider term
than "cocoa," embracing both the food and the drink prepared from the cacao, and is the Mexican name, chocolatl, slightly modified, having nothing to do with the word cacao, in Mexican cacauatl.[7] In the New World it was compounded of cacao, maize, and flavourings to which the Spaniards, on discovering it, added sugar, cinnamon, vanilla, and other ingredients, such as musk and ambergris, cloves and nutmegs, almonds and pistachios, anise, and even red peppers or chillies. "Sometimes," says a treatise on "The Natural History of Chocolate," "China [quinine] and assa [fœtida?]; and sometimes steel and rhubarb, may be added for young and green ladies."
In our own times it is unfortunately common to add potato-starch, arrowroot, etc., to the cocoa, and yet to sell it by the name of the pure article. Such preparations thicken in the cup, and are preferred by some under the mistaken impression that this is a sign of its containing more nutriment instead of less. Although not so wholesome, there could be no objection to
these additions so long as the preparations were not labelled "cocoa," and were sold at a lower price.
Such adulteration is rendered possible by the presence in the bean of a large proportion of fatty matter or cocoa-butter, which renders it too rich for most digestions. To overcome this difficulty one or other of two methods is available: (1) Lowering the percentage of fat by the addition of starch, sugar, etc.; or (2) removing a large proportion of the fat by some
extractive process; this latter method being in every respect preferable to that first mentioned.
In order to avoid the expense and trouble consequent on the latter process, some manufacturers add alkali, by which means the free fatty acids are saponified, and the fat is held in a state of emulsion, thus giving the cocoa a false appearance of solubility.
Another effect of the alkali is to impart to the beverage a much darker colour, from its action on the natural red colouring matter of
the cocoa, this darkening being often taken, unfortunately, as indicative of increased strength. On this account the presence of added alkali should be regarded as an adulteration, unless notified on the package in which the cocoa is contained.
A more subtle treatment with alkali for the same purpose is the addition to the pulverized bean of carbonate of ammonia, or caustic ammonia. This is afterwards volatilized by the application of heat. Scents and flavourings are then added to disguise their smell and taste.
Besides these combinations of cocoa with starch, sugar, etc., and cocoa treated with alkali, there are now found on the market mixtures of cocoa with such substances as kola, malt, hops, etc., sold under strange-sounding names, reminding one of the many mixtures that are made up as medicines rather than food. While the substances thus incorporated are of value in their place, they possess no virtues which are absent from the pure cocoa, and cannot be in any way considered an improvement of cocoa
as food. The sooner this practice of drug taking under cover of diet comes to an end the better it will be for the national health.
Formerly Venetian red, umber, peroxide of iron, and even brick-dust, were employed to produce a cheaper article, but modern science and legislation combined have rendered such practices almost impossible. As early as the reign of George III. an Act[8] was passed, providing that, "if any article made to resemble cocoa shall be found in the possession of any dealer, under the name of 'American cocoa' or 'English cocoa,' or any other name of cocoa, it shall be forfeited, and the dealer shall forfeit £100." Yet this Act was allowed to become so much a dead letter that in 1851 the Lancet published the analysis of fifty-six preparations sold as "cocoa," of which only eight were free from adulteration. In some of the "soluble cocoas," the adulteration was as high as 65 per cent., potato starch in one case forming 50 per cent. of the sample. The majority of the samples were found to be coloured with mineral or
earthy pigments, and specimens treated with red lead are on exhibition at South Kensington.
The inclusion of the husk or shell in some of the cheaper forms of chocolate is another reprehensible practice (strongly condemned), as they do not possess the qualities for which the kernel or nib is so highly prized. To prevent this practice it was enacted in 1770 that the shells or husks should be seized or destroyed, and the officer seizing them rewarded up to 20s. per hundredweight. From these a light, but not unpalatable, table decoction is still prepared in Ireland and elsewhere, under the designation of "miserables."
Among other beverages which have from time to time been produced from the cacao was a fermented drink much in vogue at the Mexican Court, to which it appears from the accounts of the conquest that Montezuma was addicted, as "after the hot dishes (300 in number) had been removed, every now and then was handed to him a golden pitcher filled with a kind of liquor made from cacao, which is very exciting." One variety, called zaca, drunk by the Itzas,
consisted of cocoa mixed with a fermented liquor prepared from maize; but a more harmless invention was a drink composed of cocoa-butter and maize.
There remain three forms in which pure cocoa may be prepared as a beverage:
1. Cocoa-nibs.—The natural broken segments of the roasted cocoa-bean, after the shell has been removed, prepared for table as an infusion by prolonged simmering.
It is strange that this ridiculous and wasteful means is still in use at all, as next to none of the valuable portions of the nib are extracted. The quantity of matter removed by the hot water is so small, that close upon 90 per cent, of the nourishing and feeding constituents are left behind in the undissolved sediment, the substances extracted being principally salts and colouring matters. One can but suppose that the long habit of drinking an infusion from coffee-beans and tea-leaves has fixed in the mind the erroneous idea that the substance of the cocoa-bean is also valueless. The fact