第一阶段：酵母菌发酵：酵母菌发酵阶段将大分子分解成小分子，把淀粉分解成二氧化碳和酒精，也叫糖化作用。

First stage: yeast fermentation: yeast fermentation stage will decompose large molecules into small ones, decompose starch into carbon dioxide and alcohol, also known as glycation.

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第一阶段：酵母菌发酵：酵母菌发酵阶段将大分子分解成小分子，把淀粉分解成二氧化碳和酒精，也叫糖化作用。

First stage: yeast fermentation: yeast fermentation stage will decompose large molecules into small ones, decompose starch into carbon dioxide and alcohol, also known as glycation.

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