Additionally, oils labeled "vegetable shortening" often contain additives that prevent proper bonding and should be avoided if you want a clean, slick surface. These animal or saturated fats are stable at cooking temperatures and enhance the non-stick properties without compromising the existing layer.
Everyday Best Oil Cast Iron Seasoning Tips
Fats used in cooking—such as bacon fat, lard, or clarified butter—add flavor and further build the patina. Bake the skillet upside down in a hot oven to allow excess oil to drip off and the layer to cure evenly.
What to Avoid Unrefined or low-smoke-point oils, such as extra virgin olive oil or butter, are poor choices for initial seasoning. However, it has a relatively low smoke point and can be brittle over time, making it ideal for initial seasoning layers rather than high-heat cooking maintenance.
Best Everyday Cast Iron Oil Recommendations
Top Recommendations for Seasoning Flaxseed Oil Often considered the gold standard for creating a hard, glossy finish, flaxseed oil polymerizes quickly and creates a slick, non-stick surface. Repeat the process with multiple thin coats rather than one thick layer to prevent stickiness.
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