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You are here: Home / Beers / Patent No. 4708938A: Alcoholic Fermentation

Patent No. 4708938A: Alcoholic Fermentation

November 24, 2015 By Jay Brooks Leave a Comment

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Today in 1987, US Patent 4708938 A was issued, an invention of Stephen J. Hickinbotham, for his “Alcoholic Fermentation.” Here’s the Abstract:

Fermentation method and apparatus comprising an outer container with a plastics bag hung from the neck of the container to define a chamber between the bag and the container. Means to pressurize the chamber with a temperature controlled medium to control fermentation of material within the bag. Additional pressurization of the chamber causing the fermented liquid to be expelled from the mouth of the bag.

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Filed Under: Beers, Just For Fun, Politics & Law, Related Pleasures Tagged With: History, Homebrewing, Law, Patent, Science of Brewing



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