Soy oil is typically processed using a solvent extraction process.
Direct solvent extraction, referred to as "full" pressing or prepress-solvent extraction, can separate oil from soybeans and is the most widely used method. However, mechanical extraction is often preferred by small extraction plants to remove the oil from soybeans.
Soy oil is one of several lipid sources used in aquafeeds today.
Soy oil is often blended with fish oil to provide a suitable combination of lipid and fatty acids, and as a means to limit the requirement for fish oil that is in limited supply.
New soy oil products are being researched that may one day provide the fatty acid needs that are now met by fish oil.