Add yeast mixture and egg into the flour mixture.

把酵母液和鸡蛋慢慢加入面粉，用手搅拌成团。

youdao

"It's so simple. With a two-liter bottle you add sugar, you add extract, you add a small amount of yeast and water, cap it up and in two days they've got root beer.

VOA: special.2011.08.01

Then you add yeast, ferment it, and distill it to collect the alcohol.

NPR: Canadian Dreams of Ethanol Distilled from Grass

Chinese cooks add red yeast rice to some dishes, such as Peking Duck and spareribs, to achieve a red color.

CNN: Studies: Chemical in some Chinese cuisine can lower cholesterol

The Sabin team works in the labs at GWU, where they splice the genes from the parasites and add them to yeast.

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