AN IMPROVED SOLUBLE COMPOUND OF COFFEE AND SUGAR
Year: 1883

page_text: LETTERS PATENT to Charles Alphonse Allais, of 3 Place de la Sorbonne in
the City of Paris, for an Invention of "AN IMPROVED SOLUBLE COMPOUND
OF COFFEE AND SUGAR." Partly communicated to him by Francois Victor
Pillard, of 324 Rue St Martin, in the City of Paris aforesaid, Chemist and
Druggist.
COMPLETE SPECIFICATION filed by the said Charles Alphonse Allais at the
Office of the Commissioners of Patents on the 14th March 1883.
"
CHARLES ALPHONSE ALLAIS, of 3 Place de la Sorbonne, in the City of Paris,
"AN IMPROVED SOLUBLE COMPOUND OF COFFEE AND SUGAR The said invention
has been partly communicated to me by Francois Victor Pillard, of 324 Rue St
Martin, in the City of Paris aforesaid, Chemist and Druggist
The improved compound to be called "soluble coffee-sugar" is a new product.
which may be either in the form of granulated powder or in cakes. In both
conditions the product is the same, the cakes being only an agglomeration of the
granulated powder.
The product is intended for instantaneously preparing, by merely dissolving it
in cold or warm water, sugared coffee ready to drink and exactly similar to coffee
prepared by ordinary means, that is to say, by infusion, filtration, and the addition
of sugar.
The "soluble coffee-sugar" is in fact the result of the evaporation of an infusion
of coffee and represents integrally (the flavour included), a cup of sugared coffee
from which the water has been removed.
By using this preparation, the coffee is rendered easy to prepare, and it offers
many great advantages either for ordinary use or for the use of soldiers.
For soldier's use the proportions of coffee and sugar employed are those required
by the military authorities for the use of the army; but the product may be
prepared in any other desired proportions.
The improved compound is prepared as follows:-Coffee which has been
torrefied and ground by ordinary means, is treated by the process known in
chemistry as lixiviation. The resulting colature is then evaporated in a vacuum
until it dries upon broken sugar that has been previously placed in the apparatus.

page_text: In order to hasten the operation, the evaporation is accelerated by slightly
warming the apparatus, and by cooling the vapours given off in a suitable
refrigerating apparatus.
The product thus obtained, and which forms the subject of this application, is a
brown substance of a granulated appearance, with a genuine flavour and a very
developed aroma of coffee, and which is casily soluble. When dissolved in warm
or cold water it gives an absolutely limpid solution, and when dissolved in boiling
water it affords immediately a highly flavoured and very palatable solution of
coffee, with an exquisite taste, and which is incomparably superior to the coffee
commonly prepared in barracks with the means the troops may have at their
disposal.
The "soluble coffee-sugar" may be preserved indefinitely without losing any of
its flavour. Further, it may be placed in metallic boxes thus preserving it from
moisture, in the same way as any kind of alimentary preserves. These boxes are
preferably formed so as contain either, 100 portions of the loose granulated
"soluble coffee-sugar," 50 portions of the same, or 10 portions of the same.
The product may also be prepared in individual portions in the form of cakes or
tablets.
Owing to these conditions it is not necessary to weigh or divide the coffeo and
sugar into fractions, and the person appointed to the mess will be able to at once
give the necessary quantity of portions to each company or each detachment of
soldiers.
Should the troops be unable to make a fire, they would not be compelled to go
without coffee, since the product is as easily soluble in cold as in warm water.
Even when on a campaign, if some detachments were deprived of both fire and
water, the soldiers might still avail themselves of the tonic restorative properties
of coffee by eating the "soluble coffee-sugar" dry, which, besides is as tempting
as a sweet.
In hot weather a solution of "coffee-sugar" diluted with water, will produce a
thoroughly tonic drink, especially efficient as a preventative against fevers and
dysentry so often occurring during summer when only unwholesome water is
obtainable.
The product will also be found advantageous on account of the reduction of the
cost of carriage and its easy storage.
Having thus described the nature of the said Invention and the manner of
carrying the same into effect, I wish it to be understood that what. I claim is :-
1st The improved product consisting of a compound of sugar and coffee prepared
substantially as herein described.
.▸
2nd The packing or storing of the improved compound in suitable boxes, or
forming the same into cakes or tablets, in such quantities that any required amount
for a given number of persons may be at once served out without having to weigh
or otherwise calculate the amount necessary.
In witness whereof, I, the said Alphonse Charles Allais have hereunto set my
hand and seal this thirteenth day of March in the year of Our Lord One
Thousand Eight Hundred and Eighty-three.