'Top fermentation' definitions:
Definition of 'top fermentation'
From: WordNet
noun
A violent kind of alcoholic fermentation at a temperature high enough to carry the yeast cells to the top of the fermenting liquid; used in the production of ale; "top fermentation uses a yeast that ferments at higher temperatures than that used for bottom fermentation"
Definition of 'Top fermentation'
From: GCIDE
- Top fermentation \Top fermentation\ An alcoholic fermentation during which the yeast cells are carried to the top of the fermenting liquid. It proceeds with some violence and requires a temperature of 14-30[deg] C. (58-86[deg] F.). It is used in the production of ale, porter, etc., and of wines high in alcohol, and in distilling. [Webster 1913 Suppl.]