Soymilk is generally made of soy milk, and can also be made of mung beans and black beans. Can be made at home. The traditional method is grinding with a millstone, grinding soaked wet soybeans into slurry, filtering with fine cloth or gauze to remove residues, and boiling the filtrate before eating. At present, it is very common to use soymilk machine at home. Just put the soaked soybeans into the machine, add a proper amount of water and start the machine. Generally, you can get the cooked soybean milk in about 20 minutes, and you can filter it before pouring it out, so that it tastes better (if you don't filter it, there will always be some finely chopped soybeans that will affect the taste). Some styles of soymilk machines can be made directly from dried beans and water.

Firstly, dry beans are selected to remove abnormal beans, such as discolored beans and shriveled beans, soaked in cold water for 8- 12 hours (8 hours in summer and 12 hours in winter), taken out, added with clear water, ground with a stone mill or pulverizer, filtered with a sieve made of fine gauze, and the filtrate is properly added with water and cooked thoroughly to make the raw beans have no bean smell. The concentration of soybean milk fluctuates according to the amount of water added. The method has high yield and is suitable for commercial application.

It is more labor-saving to use soymilk machine. Add water after adding beans, and press "Start" to get the cooked soybean milk, which can be drunk directly after filtering. However, the yield is low, generally about 2 liters can be made in about 20 minutes, which is suitable for family consumption.