It depends on the moisture of the soybean raw material. (1) When the moisture content of the soybean raw material is high, it is preferable to use a dry method to puff, which is favorable for evaporation of water and reduction of moisture content of the soybean powder. (2) When the moisture content of the soybean raw material is low, wet expansion can be used, because the steam is easy to be tempered, the yield per unit time can be improved, and some anti-nutritional factors are more destructive, and the improvement can be further improved. Improve the nutritional value of soy flour. Try to improve the conditioning effect, which is conducive to the protein solubility of the expanded soybean. PE Coated Spunlace,PE Coated Spunlace Nonwoven,Spunlace Nonwoven Fabric,Absorbent Water Spunlace XINLE HUABAO MEDICAL PRODUCTS CO.,LTD. , http://www.golbaltravel.com