How to Use a Cast Iron Skillet | First Cook to Final Season

Use a cast iron skillet by heating it gradually, cooking with a little oil, and cleaning, drying, and re-oiling it after every use.

Cast iron skillets deliver restaurant-quality sears and last for generations, but only when handled right. The routine is simple: heat the pan slowly, cook with some fat, clean it while warm, dry it completely, and wipe on a thin layer of oil before storing. Whether you just unboxed your first skillet or want to fix a sticky one, this guide walks through the process.

Preheating a Cast Iron Skillet the Right Way

Cast iron distributes heat unevenly when cold, so preheating matters more than with other pans. Start on medium-low and give the skillet a couple of minutes to warm up before adding anything. Resist cranking the burner to high — cast iron holds heat so well that high settings usually overshoot your target temperature.

Once warm, add a little butter or cooking oil. The fat prevents sticking, helps build seasoning, and carries flavor. Let the oil shimmer before adding ingredients. A properly preheated skillet will sear meat, fry eggs, and sauté vegetables without constant fiddling.

Cast iron works on any cooktop, but each heat source behaves differently. On electric coils and glass tops, the pan takes longer to heat; on gas, it responds faster. Adjust the dial to your stove — a drop of water should sizzle and evaporate quickly when the surface is hot enough.

Cleaning and Drying: Keep the Seasoning Intact

Cleaning cast iron is easier than most expect. Wipe out excess food and oil while the pan is warm, then rinse under hot water. For stuck-on bits, scrub with a nonmetal brush or nonabrasive pad. A little soap is fine — modern dish soaps won’t strip a well-seasoned pan.

Never soak a cast iron skillet, put it in the dishwasher, or let it air-dry. Water is the enemy of seasoning and the cause of rust. Once cleaned, dry the pan thoroughly, then heat it on medium-low for a couple of minutes to evaporate every drop of moisture.

After drying, apply about 1/2 teaspoon of oil to coat the interior, then wipe away all excess. The surface should look dry and matte, not shiny or greasy. That invisible film protects the seasoning between uses. A tested roundup of cast iron skillets for camping can help you pick a second pan for the trail, where the same care routine applies.

Oven Seasoning: Strip It Back or Build It Up

When your skillet’s seasoning looks thin, patchy, or sticky, an oven session restores it. Heat the oven to 500°F. Rub in 1 tablespoon of oil for a 12-inch skillet or 2 teaspoons for a 10-inch skillet, then wipe out the excess — the step most people skip, and the one that prevents a sticky surface. Bake the skillet upside down for 1 hour, then let it cool in the oven.

The most common seasoning mistake is using too much oil. Excess oil polymerizes into a gummy layer instead of a smooth barrier. When in doubt, wipe more oil out than you think you should. A correctly seasoned skillet looks dry, not glossy.

Other mistakes that shorten a skillet’s life include letting water sit on the pan, causing rust, and overheating or rapid temperature swings. Never pour cold water into a hot skillet — thermal shock can warp the pan. Hand-wash only, and refresh the seasoning at least once a year, more often with daily use.

For a brand-new skillet, first use is simple. Wash it once with warm water and soap, towel-dry it completely, and it’s ready. Start the burner on medium-low and add about 1 tablespoon of vegetable oil before the pan gets hot. That first cook builds the foundation for everything that follows. America’s Test Kitchen’s guide to cleaning and seasoning cast iron skillets covers the science in more depth.