Once transported to processing facilities, the raw materials undergo cleaning to remove debris, stones, and damaged kernels. Common sources include soybeans, sunflower seeds, canola, peanuts, cottonseed, and palm fruit.
Making Oil From Soybeans Steps: From Cleaning to Extraction
Quality Control and Standardization Throughout the production process, rigorous quality control measures ensure the final product meets food safety standards and regulatory requirements. Cleaning and Conditioning Cleaning involves multiple stages of screening and air classification to ensure only the desired material enters the extraction system.
Samples are tested for acidity, peroxide value, color, and sensory characteristics. This method can extract up to 99% of the available oil compared to 70-85% for mechanical pressing alone.
Making Oil From Soybeans Steps: Cleaning, Extraction, and Quality Control
Solvent Extraction For higher yields and efficiency, most commercial operations employ solvent extraction, particularly for oilseeds with lower oil content. Mechanical pressing, also known as expeller pressing, uses massive screw presses to physically squeeze oil from the raw material through intense pressure and friction.
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