These seeds contain roughly 40 percent oil, which is extracted through a multi-stage industrial process that transforms raw material into a neutral cooking oil found in kitchens worldwide. Once cleaned, the seeds are rolled to crack the seed coat and then subjected to high-pressure rolling mills or flaking rolls to break the cells and prepare the material for oil separation.
How Canola Oil Is Made Step By Step
This phase involves several stages, including degumming to remove phospholipids, neutralization to eliminate free fatty acids, and bleaching with activated clays or carbon to strip away color compounds. The remaining oil trapped in the press cake is then extracted using hexane, a petroleum-based solvent that dissolves the residual oil without damaging the protein structure.
Steam is injected to carry away these compounds, leaving behind a neutral-smelling oil. Cooking denatures enzymes and reduces oil viscosity.
How Canola Oil Is Made Step By Step
From Seed to Crude Oil: The Extraction Process The production of canola oil starts on the farm, where canola seeds are harvested and transported to a processing facility. Deodorization and Winterization Perhaps the most critical step in refining is deodorization, where the oil is heated under a vacuum to strip volatile compounds that cause strong odors.
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