| bottom fermentation | (n) 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 |
| Bottom fermentation | . A slow alcoholic fermentation during which the yeast cells collect at the bottom of the fermenting liquid. It takes place at a temperature of 4° - 10° C. (39° - 50°F.). It is used in making lager beer and wines of low alcohol content but fine bouquet. [ Webster 1913 Suppl. ] |