... down to 30 to ferment. 2). Starch Industry: Liquify the raw material, adjust the PH value to 4.2-4.5, cool down ... : when producing dry beer, add glucoamylase before fermenting, which could strengthen the fermentation ability. 4). Brewage Industry: when producing wine, yellow ... wine, using glucoamylase instead of wine yeast could make the more final product. It is widely used in vinegar ...