bottom fermentation


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Related to bottom fermentation: top fermentation
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Noun1.bottom fermentation - a slow kind of alcoholic fermentation at a temperature low enough that the yeast cells can sink to the bottom of the fermenting liquid; used in the production of lager
fermenting, zymolysis, zymosis, fermentation, ferment - a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol