Method for the Production and Storing of Beer Without Contact with the Atmosphere.
Year: 1890

page_text: wate of Application, 28th Apr., 1890-Accepted, 7th June, 1890
Method for the Production and Storing of Beer Without Contact
with the Atmosphere.
I GUSTAV SCHNEIDER of 24 Braudswiete No. 2-4 Hamburg in the Empire of
Germany, Brewers' Engineer 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 :-
The object of this invention is to perform the whole process of brewing beer from
the wort while excluding all outer atmospheric air and thus to obtain a product which
will keep and is free from germination and the nutritiousness of which is increased as
no after fermentation whatever takes place as is the case with the known methods of
brewing. The improved method permits of an interuption of the fermentation during
its process at any time and thus allows the brewer to increase or reduce the alcoholic
contents according to requirements and consequently to preserve for the beer a larger
amount of extract than has been possible heretofore.
With this process the cellar storage otherwise necessary is obviated, the process
cheapens considerably the production of beer and gives a product of a taste far more
agreeable than with the old process.
The invention consists in boiling the wort by means of steam in a high pressure
boiler under pressure and with addition of hops then to cool it down, and then by the
application of filtered and sterilized atmospheric pressure to conduct it successively
into closed vessels within which takes place, filtration a yeast fermentation a second
filtration a pasteurizing and lastly a mixing with pure carbonic acid. The accom-
panying drawing explains the process the same showing the various apparatus to be
used and their purpose.
After
A is a boiler into which the wort is introduced through the opening a which can be
shut. In A the wort is boiled with the hops by introducing steam through the pipe b
into the boiler. The boiler A has a double bottom c underneath which the steam
enters. After the boiling the product is cooled down by cold water which is intro-
duced instead of the steam through the pipe 61 underneath the double bottom c.
the cooling has taken place the liquid is transferred from A to the filter B. by
atmospheric pressure through the pipe the air having been filtered in filter r. and
sterilized so that by regulating the respective cocks, the liquid travels through the
pipe & into the filter B. From the filter B the liquid with the further use of the above
named pure atmospheric pressure passes through the cooler C. into the fermentation
vessels D and D¹ where it is fermented with pure yeast and then filtered in a further
filter E.
This filtered liquid is now pressed into the pasteurizing vessel G the pressure
always taking place by introduction of sterilized air and then it is filtered again in
the filter H.
From H the liquid is transferred by pressure into the mixing vat J and it is mixed
here with pure carbonic acid in order to be bottled in syphons or bottles s whilst
excluding the outer atmosphere.
In order that the air or gases, vapours etc. may be removed etc. from the various
vessels without the outer air entering the escape tubes m are introduced with the outer
end into water cisterns e as seen by the drawing.
The fermentation process may be interupted at option and the contents of alcohol
which one desires to give the beer can be thus regulated.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
A method for producing beer, consisting in boiling the wort under pressure in
boiler A and thereafter whilst always excluding the. outer atmosphere, to cool it,
filter it ferment it in a fermentation vessel to refilter it again then to pasteurize it
and then to impregnate it in a mixing vessel with pure carbonic acid and to place
it into bottles or syphons substantially as set forth.
Dated this 28th day of April 1890.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.