When you buy a new cast iron pan, wash it by hand in warm, soapy water. Dry the pan with a towel, then put it in a 300-degree oven for about five minutes to dry it completely — even a bit of remaining moisture can cause rust to form on cast iron pans.Next, using a paper towel, rub about a tablespoon of olive or vegetable oil over the surface of the pan, inside and out. Wipe away excess oil — you are aiming for a thin coat. Put the pan in a 300-degree oven for an hour, let it cool, then rub it all over with a clean rag.
Everyday Care
Never use soap on your cast iron pan. Promptly after each use, wipe out the pan using a paper towel and a bit of oil. If food is stuck on, run the pan under hot water and scrub the food off with a soft brush or plastic scouring pad — remember, no soap! Soap will remove the seasoning, which is what creates that wonderful nonstick surface.
Stain Removal and Long-term Care
For really tough, stuck-on food, boil water in your pan on the stovetop for a few minutes, then clean it as usual. Reseasoning occasionally will help maintain the finish.
