In which alcoholic fermentation is the main phase of brewing, is the role of microorganisms by the yeast, the grape sugar into alcohol in the process.
其中酒精发酵是酿造的主要阶段，是经由酵母菌的微生物作用，将葡萄中的糖转变为酒精的过程。
2
Pear vinegar is a fruit vinegar drink made from fresh pear and black gooseberry as the main materials by crushing, pressing, alcoholic fermentation, acetic acid fermentation and formulation.
洋梨醋是以新鲜洋梨、黑醋栗等为主要原料，经破碎、压榨、酒精发酵、醋酸发酵、勾兑调配而成的一种果醋。
3
Fermentation was the main influence factor of Pu 'er tea quality.