Milk, Richie, lamb slaughter. Tofu had many names in ancient times, including fermented milk, Li Qi and little slaughtered sheep, which were collectively called tofu after the Song Dynasty. Tofu workshops can be made by machine or by hand. The birth of tofu completely changed the fate of soybean. Tofu is a fresh and delicious food made from soybeans. For hundreds of years, local people have made, sold and eaten tofu, forming a tofu diet culture characterized by "tofu rice" and "stewed tofu".