This transformation is called polymerization, where the oil molecules cross-link together to form a resilient film. Rice bran oil: Offers a high smoke point and creates a slick, hard seasoning layer.
Reinforce Seasoning Layer With Thin Oil Wipe
Understanding Polymerization Seasoning is the act of baking a thin layer of oil onto the cast iron surface until it transforms into a plastic-like coating. Polyunsaturated fats contain double bonds that allow them to link together tightly, creating the hardest and most durable seasoning layer.
Bake the pan upside down in a standard oven at around 450°F (230°C) for one hour. However, these fats are also more susceptible to breaking down at high heat, which is why the smoke point is a critical factor.
Reinforce Seasoning Layer With Thin Oil Wipe
This process requires an oil with a high smoke point and a specific balance of fats, primarily polyunsaturated fats that bond strongly when heated. This allows the excess oil to drip off while the polymerized layer hardens evenly.
More About Vegetable oil for seasoning cast iron
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