Soda biscuits are fermented with baking soda, that is, edible alkali and flour, just like steamed bread. Baking soda is also used to make steamed bread. Unfermented pasta is usually called cold water, such as chaotic skin, dumpling skin, hand-grabbed cake and so on. If you want to ask the kind of "hair" with wounds and taboos, it is edible, which will cause long-term health.