Unrefined or "virgin" oils, such as extra virgin olive oil or unrefined walnut oil, are expelled using mechanical processes without chemicals or high heat. With smoke points typically hovering around 400 to 450 degrees Fahrenheit, they are more than capable of handling the heat required to bond the oil to the steel.
Understanding High Smoke Point Oils for Carbon Steel Seasoning
Unrefined Oils When evaluating smoke points, it is crucial to distinguish between refined and unrefined oils. The Seasoning Process Demystified.
For this reason, oils with high smoke points are essential, as they can withstand the intense, sustained heat required for building a robust patina without imparting burnt flavors or harmful residues. For the specific purpose of seasoning, refined high-smoke-point oils are almost always the superior choice because they provide the necessary thermal stability without introducing unwanted flavors or residues.
Understanding High Smoke Point Oils for Carbon Steel Seasoning
When an oil reaches its smoke point, it starts to degrade, creating free fatty acids and other compounds that result in a weak, sticky polymer layer rather than a hard, slick finish. In contrast, refined oils undergo processes like bleaching and deodorizing, which strip away these impurities and significantly raise their smoke points.
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