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fermentation lock

Also called a fermentation trap, this low-pressure valve atop a fermenting vessel allows carbon dioxide gas to escape but inhibits air or bacteria from entering. See also FERMENTATION. 


Related Links: barrel fermentation, whole berry fermentation, carbon dioxide
© Copyright Barron's Educational Services, Inc.
1995 based on THE WINE LOVER'S COMPANION,
by Ron Herbst and Sharon Tyler Herbst.

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