Chengfen is also called Chengmian, Tingfen and Wheat Starch. It is a kind of gluten-free flour, and its ingredients are wheat. Can be used to make various snacks such as shrimp dumplings, vermicelli, rice rolls, etc. It is processed flour. After rinsing with water, the gluten in the flour is separated from other substances, and the gluten becomes gluten, and the rest is the surface. Nutritional analysis Chengfen is actually the raw starch related population, which can be eaten by the general population.