Soybean meal is a by-product obtained from soybeans after extracting soybean oil. According to different extraction methods, it can be divided into two types: first-soaked soybean meal and second-soaked soybean meal. Among them, the by-product after extracting soybean oil by leaching method is first-leached soybean meal, and the by-product obtained after first extracting the oil by pressing and then leaching the oil is called second-leached soybean meal. During the entire processing process, temperature control is extremely important. Too high a temperature will affect the protein content, which is directly related to the quality and use of soybean meal; too low a temperature will increase the moisture content of soybean meal, while high moisture content will Affect the quality of soybean meal during storage period. The production process of soaked soybean meal is relatively advanced and has high protein content. It is the main variety currently circulating in the domestic spot market.

Bean dregs: The dregs left over when making soy milk can be used as feed. Nowadays, more and more people process it for human consumption.