An Improved Process for the Preservation of Milk.
Year: 1899

page_text: Date of Application, 4th May, 1899-Accepted, 10th June, 1899
COMPLETE SPECIFICATION.
__ An Improved Process for the Preservation of Milk.
We, ADOLF BRECHER, Merchant, of 2, Liechtensteinstrasse, IX, and ADOLF
KITTEL, Electrician, of 19, Herthergasse, V, both in Vienna, in the Empire of
Austria, do hereby declare the nature of this invention and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement:-
This invention relates to the preservation of milk, and consists in an improved
method of treatment whereby the milk is evaporated, dried and ground, in which
condition it is packed in hermetically sealed vessels until required for con-
sumption, when it may be dissolved in water, either hot or cold, all its original
richness being retained.
33
*
or
new
وو
unskimmed milk, as it
In carrying out our improved process,
comes from the cow, is subjected to a temperature of about 40 degrees Centigrade
until the moisture is completely evaporated the resultant being then subjected
to complete desiccation in suitable drying chambers, wherein the temperature
should not be higher than that mentioned above. A higher temperature should
be avoided as it would render the milk difficult of solution.
After the complete desiccation of the milk thus evaporated, it is ground to a
fine powder and charged into cans or tins which are hermetically closed by any
suitable means, preferably by soldering.
With a view to increasing the keeping property of the milk-powder, and to
make it more readily soluble in warm, and, indeed, in cold, water, the un-
skimmed milk should, prior to its being subjected to evaporation, be served with
a quantity say from about 1 to 15 per cent.-of an alkaline carbonate, such
as bicarbonate of soda, which, when combined with fatty matters, is capable of
forming a compound soluble in water. An addition of sugar in the same pro-
portion, either before or after evaporation, is also advantageous.
The milk-powder when charged into hermetically sealed vessels, may be pre-
served for years, without its composition being affected; and it will readily
dissolve in water, whether cold or warm. It is a perfect substitute for fresh milk
retaining its original richness.
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed, we claim:-
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1. The herein described process for the preservation of milk consisting in
adding to
new or "unskimmed" milk an alkaline carbonate, such as bi-
carbonate of soda, capable of forming with fatty matters a compound soluble in
water, subjecting the mixture to a temperature of 40° Centigrade or thereabouts
until the moisture is completely evaporated, reducing the dry product to a fine

page_text: powder, and (if to be preserved for future use) ultimately enclosing the same in
an air-tight receptacle.
2. As a new article of manufacture, desiccated milk resulting from the process
referred to in the preceding claiming clause.
G. G. M. HARDINGHAM,
Chartered Patent Agent,
Clun House, Surrey Street, London, W.C.
For the Applicants,
..