Pretreatment is to adjust the soybean into best state before pressing or solvent extraction, in order to increase oil output rate and improve oil and cake or meal quality.
The standard soybean pretreatment technology mainly includes cleaning, crushing, softening, flaking and cooking. Each steps has different functions.
After pretreatment, you can choose to press the soybean directly, using mechanical way to get crude soybean oil out, or send the cooked flakiness to solvent extraction plant for extracting more oil.
