For the initial curing of a raw pan or for high-heat searing applications, a refined oil is typically the more reliable choice due to its thermal stability. To achieve this with olive oil, the heat must be sufficient to cross-link the oil, but not so high that the oil burns and flakes off.
Proper Use of Olive Oil on Cast Iron Exterior Surfaces
However, this comes with a trade-off; the delicate compounds in EVOO can break down with repeated high-heat use, potentially leading to an off-flavor or a sticky surface if the polymerization is incomplete. Not all olive oils are created equal, and the smoke point of the oil is a critical factor that determines whether it will polymerize effectively or create a sticky, rancid mess on your skillet.
The Flavor Paradox While refined olive oil wins on technical performance, extra virgin olive oil offers a distinct advantage in the flavor department. First, ensure the cast iron is impeccably clean and completely dry.
Caring for Your Olive Oil Exterior Cast Iron Properly
Understanding the Science of Polymerization The goal of seasoning cast iron is to create a durable, non-stick patina through a process called polymerization. The stability of the oil under heat is the single most important variable in determining the success of the process.
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