Jiaozi and Dough Skills:
Jiaozi needs cold water and noodles, that is, cold water and noodles. The best choice for jiaozi noodles is to mix noodles with cold water, so that the jiaozi is white, refreshing and firm.
Cold water dough is a kind of water-mixed dough mixed with water at a temperature below 30 degrees, commonly known as cold water surface. Because the flour is mixed with cold water or low-temperature water, protein in the flour can't undergo thermal denaturation, thus forming more and stronger gluten. Starch does not swell and gelatinize at low temperature, so the dough formed is firm, tough, tensile and stiff.