Flaking increases the surface area of the material, allowing solvents or mechanical pressure to access the oil more efficiently during extraction. Refining, Bleaching, and Deodorizing Crude canola oil contains impurities, free fatty acids, and compounds that affect flavor and color, so it undergoes refining.
Ensuring Purity and Quality in Canola Oil Production
Mechanical pressing, often called expeller pressing, uses intense pressure to squeeze oil from the flakes without chemicals. Oil Extraction Methods There are two primary paths for extracting oil from canola flakes: mechanical pressing and solvent extraction.
In larger commercial operations, solvent extraction is commonly used to maximize yield. Conditioning and Rolling Cleaned seeds move into conditioning towers, where heat and controlled moisture are applied to soften the seed coat.
Ensuring Quality Control in Canola Oil Production
Winterization and Filtration To prevent cloudiness at low temperatures, canola oil may be winterized. Solvent Extraction and Recovery In solvent extraction, flakes are soaked in food-grade hexane, a solvent that dissolves the oil trapped within the solid material.
More About How is canola oil made
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