Soy products are mainly divided into two categories, soy foods using soybeans as raw materials and other soy products using other miscellaneous beans as raw materials. Soy foods include soybean flour, tofu, tofu silk, soybean milk, soybean milk powder, tofu skin, oily skin, dried tofu, yuba, vegetarian chicken, vegetarian ham, fermented soybean products, soybean protein powder and its products, soybean sticks, soybean frozen foods, etc. . Fermented soybean products such as tempeh, fermented bean curd, tempeh, sour milk and so on.