Choose old tofu with less moisture, cut it into small pieces (thickness 1cm, side length 3cm), arrange it, put it indoors 10℃, and naturally ferment it 15 days (for example, room temperature 20℃, 5 days). When white or yellow fimbriae grow on the surface of tofu, it means that tofu has been fermented. Prepare a 1 clean jar, arrange the fermented tofu blocks in the jar, and then prepare salt water. According to 500 grams of tofu 150? 200 grams of salt is made into salt solution. Pour salt water into the jar and drown the tofu. Finally, put some pepper and white wine and cover the jar mouth. After 10 days, the fimbriae on the surface of tofu will melt and become delicious tofu milk.