How to Season Cast Iron Skillet? | The Oven Method That Works

Season a cast iron skillet by baking a thin layer of oil onto it in a 450–500°F oven for one hour.

For the full breakdown, see our best Cast Iron Skillet Made In USA guide.

Seasoning is what turns a raw cast iron skillet into the slick, naturally nonstick pan that can last generations. The process boils down to one chemical reaction: heat turns a thin layer of oil into a hard, polymerized coating bonded to the iron. Getting that layer right comes down to three things — a clean pan, a whisper-thin coat of oil, and enough heat and time in the oven. Here’s the exact method, straight from Lodge’s official instructions, plus the common mistakes that leave pans sticky instead of slick.

What You Need Before You Start

Gather four things: your skillet, warm soapy water, a cooking oil with a high smoke point (vegetable, canola, or grapeseed all work), and a clean lint-free cloth or paper towel. You’ll also want a sheet pan or piece of foil and an oven that reaches 450°F or higher.

One note on oil choice: while the core process works with any standard cooking oil, avoid low-smoke-point oils like butter or olive oil for the seasoning coat itself — they burn before they polymerize, leaving a gummy residue.

Seasoning Steps: The Exact Oven Method

This is Lodge’s official seasoning procedure, which applies to skillets and other cast iron cookware alike. It works for both a brand-new pan’s first seasoning and restoring an older one.

1. Wash the skillet with warm, soapy water. Scrub away any rust, food residue, or old flaking seasoning, then rinse and dry it completely.
2. Apply a very thin layer of oil to the entire surface — inside, outside, handle, and bottom. Use your cloth to spread it evenly.
3. Wipe off all excess oil. This is the most important step. The pan should look coated but never wet, shiny, or dripping. If it looks greasy, wipe again with a fresh cloth.
4. Place foil or a sheet pan on the lower oven rack to catch any drips.
5. Bake the skillet upside down at 450–500°F for about 1 hour. Flipping it prevents oil from pooling in the pan’s well.
6. Turn off the oven and let the pan cool inside before handling. The skillet will be extremely hot.

For a first-time seasoning or a full restoration, repeat the oil-and-bake cycle two or three times. Each round adds another polymerized layer, building a darker, more durable finish. Once the pan cools, it should feel smooth and dry.

The Common Mistake: Too Much Oil

Using too much oil is the single most frequent reason a freshly seasoned pan comes out sticky. Lodge’s own instructions explicitly warn that excess oil causes a sticky finish — the oil pools instead of polymerizing, leaving a tacky residue that’s difficult to fix.

If your pan does come out sticky, don’t panic. Wash it with warm soapy water to remove the excess, dry it thoroughly, and re-season with a thinner coat. A properly seasoned pan feels dry to the touch, not greasy.

Another mistake: handling the skillet too soon. The pan and oven are dangerously hot after the hour-long bake, so always let everything cool completely inside the oven before pulling it out.

Caring For Your New Seasoning

Once your skillet is seasoned, routine care is simple. Wash it with warm water and mild soap (contrary to old myths, modern dish soap is fine), dry it on the stovetop over low heat, and rub in a drop of oil to refresh the surface. Cooking with fats and oils naturally maintains the seasoning over time, so the more you cook, the better it gets.

If you’re in the market for a new skillet to season, our tested roundup of the best cast iron skillets made in the USA covers brands, weights, and pre-seasoned options to start with.

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