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How to clean and maintain your cast iron skillet

Wash away scum, not seasoning.

What You Need:

  • Dish soap
  • Soft sponge
  • Vegetable oil
  • Paper towel

Time Needed:

15 minutes




  1. Make sure you’ve built up a sufficient amount of seasoning on your skillet.
  2. Wash gently with warm water, a small amount of dish soap, and a soft sponge. You can use the scrubby side of the sponge for any tough spots if you take care not to scrub too vigorously.
  3. Pat dry with a dish towel. Set the skillet on your cooktop or rangetop and turn the burner on high, allowing any remaining water to evaporate.
  4. Pour a small amount of vegetable oil in the skillet and rub it all over with a paper towel. Continue heating skillet on high until it starts to smoke. Remove it from the heat and rub it down one more time to remove excess oil.

Is there a cast iron skillet in your kitchen? If so, congrats! You’re the proud owner of a durable piece of metal that gets and stays hot, radiates enough heat to cook even a whole chicken all the way through, and enhances the flavor of your food.

But what do you do with that skillet when it’s covered in bits of charred, stuck-on food? To answer that question, we need to talk about seasoning…

Lodge skillet


Best Cast Iron Pans

1. Build up a layer of seasoning.

The magical cooking properties of cast iron come courtesy of a layer of polymerized oil often referred to as "seasoning." You can build up this crucial layer over time by repeatedly oiling and heating the pan.

There are plenty of reliable how-to guides on how to handle the initial seasoning of a new skillet, so we'll skip past that. this advice is all about keeping your pan in good shape once you start cooking with it.

Maintaining a shiny coating of seasoning is vital for the longevity of your cast iron. View Larger

Why bother to season? Because seasoning is vital if you want your pan to remain usable. The shiny coating gives your pan nonstick properties, readying it to handle foods like as eggs that might otherwise bond to the metal. It also protects the pan from water, which can cause rust.

It's iron’s propensity to rust that makes cast iron trickier to clean than stainless steel or nonstick. Luckily, with just a little extra care, you’ll be able to keep your skillet clean without destroying the vital seasoning. (And don't worry: If you mess up, you can always start over from scratch.)

2. Hand-wash gently.

Many cast iron aficionados will tell you that you shouldn't use soap to wash your skillet, since it will strip away those crucial oils. Not so!

See, there’s a significant chemical difference between oil and polymerized oil. Seasoning is oil that has been broken down into a plasticky material and bonded with the metal of the pan. A small amount of soap, gently applied, shouldn’t harm it. Just make sure you’ve built up a good base layer first.

Many folks skip soap altogether, and you can too if you’re really nervous. But know that my trusty skillet has never been harmed by a little gentle dish soap.

Likewise, there’s a common misconception that scrubbing your cast iron pan will scrub away all the seasoning. But as long as you’re not too rough, you should have no such issue.

The scrubby side of a sponge is fine, though you should avoid really going to town on the thing. Keep steel wool far away from your cast iron pan. Seasoning is tough, but not so tough that something that abrasive won't wear it away.

Seasoning protects your pan from bonding with food. View Larger

If you’re dealing with tough bits of stuck-on food and want to be extra careful, you can try scrubbing the pan with coarse kosher salt, as suggested by Bon Appetit.

3. Make sure it’s dry.

Water is cast iron's mortal enemy. Seasoning can only do so much to protect the metal from rust-inducing moisture, so you’ll want to keep your pan dry as often as possible.

It's okay to wash your cast iron with water, so long as you dry it thoroughly afterwards. View Larger

You can wash your cast iron with water, but take care not to let it soak for an extended period of time. And when you’re done washing, don’t air-dry. I like to wipe mine down with a towel, then set it on top of the stove and heat it until any remaining moisture has evaporated away.

4. Re-season your skillet.

Cast iron reseasoning
Credit: / Kyle Looney
After cleaning and drying your skillet, rub it down with oil and heat it until it smokes.

While your skillet is heating on the stove after washing, you may as well continue to work on your seasoning.

Sponge on cast iron skillet
Credit: / Kyle Looney
Cleaning cast iron isn't hard! View Larger

When the residual water has evaporated, pour a small amount of vegetable or canola oil into the skillet and carefully rub it all over with a paper towel. Continue heating the skillet on high until it starts to smoke. Then, take it off the heat and rub it down one more time to remove any excess oil.

This is a quick way to build up and maintain your seasoning. Cast iron might be slightly trickier to clean than other kinds of pans, but once you’re used to it, you’ll find the process fairly painless.

The payoff? A great pan that will last you forever.

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Lodge L10SK3 Pre-Seasoned Skillet, 12-Inch

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