Why do people not clean their cast iron skillet?

Author: Marcel Tillman MD  |  Last update: Saturday, June 28, 2025

Cooks for generations didn't use soap on cast iron pans because the soaps were made with lye and vinegar, two ingredients that will absolutely strip the seasoning and can even damage the pan's iron. Today's aerosol oven cleaners are often made with lye or sodium hydroxide.

Why are you not supposed to wash a cast iron skillet?

Second, dry your skillet promptly with a dish towel or paper towels. Cast iron is a big hunk of iron, after all. Too much exposure to water will cause it to rust. You can still salvage a rusted pan by scrubbing and re-seasoning it, but it's more of a pain than just wiping the skillet dry every time you use it.

Is a little rust on cast iron ok?

Cooking with a cast iron pan that has a little bit of surface rust on it isn't likely to hurt you. If your pan is seriously rusty or has visible rust flakes, you shouldn't cook with it until the rust is removed and the pan is washed and re-seasoned.

What does the phrase "don't wash the cast iron skillet" mean?

According to Isbell, “Don't wash the cast iron skillet is common advice; soap and water can strip the pan's natural seasoning, and salt is a perfectly good skillet scrubber. But the seasoning can easily be reapplied with a little oil and heat, and sometimes soap and water work much faster than salt.

Is cast iron supposed to wipe clean?

How to Clean a Cast Iron Frying Pan. To clean, just use mild dish soap (that's right, it's okay to use a little soap!) and a scouring pad or a cast iron pan cleaning brush. Wash it, scrub it, rinse it, then wipe it out well and season it with a few drops of oil and store with a paper towel covering the cooking surface.

Secrets to cleaning cast iron to keep it NON-STICK

Why is my cast iron so black when I wipe?

Occasionally, the seasoning on your pan may break down and leave black specks, especially if the cookware is not well-seasoned, but it is not harmful in any way.

Do you clean cast iron after every cook?

Clean your cast-iron skillet each time you use it. Doing so prevents stuck-on food from staying on the skillet between uses. If the skillet is only slightly dirty, a quick wipe after cooking in it will work. If dirtier, or food is stuck, then scrubbing it is best.

How is cast iron sanitary?

From a food-safety standpoint, the surface of a cast iron pan during cooking easily reaches upwards of 300 degrees, which is high enough to kill any bacteria that don't get washed away. You will not get sick from maintaining your pan this way.

Is Dawn dish soap safe for cast iron?

Will Soap Ruin Cast Iron? Using soap will not ruin your pan. It is totally fine on enameled cast iron, and on plain cast iron, too. It's not going to destroy your seasoning.

What is one thing you should never use to clean and season a cast-iron skillet?

It's important to not use anything too aggressive such as steel wool, sponges or other abrasive cleaning methods as these will strip your seasoning.

When should I throw away my cast iron pan?

When Should You Throw Away Your Cast Iron Pan?
  1. Cracks. Many cast iron pans develop cracks over time, especially when used frequently at high temperatures. ...
  2. Chips and Holes. Your cast iron pan could start chipping for various reasons. ...
  3. Warping. Another sign of cast iron damage is warping.

Does coke remove rust from cast iron?

Yes, Coke contains phosphoric acid which helps remove rust from cast iron. Pour Coke on the rusted area and wait 15 to 20 minutes for the acid to break down the rust. Then wipe the pan with a scrubby sponge or dish towel. Repeat this process until the rust is completely gone.

What's the best oil to season cast iron?

Common cooking oils like olive oil will gradually produce seasoning, but won't be as effective as grapeseed oil. Canola, other vegetable oils, and shortening are a little better.

Why is soap bad for a cast iron skillet?

The first is that since oil is used to season the cast iron skillet and create a nonstick surface, soap would effectively wash away the cure that you worked so hard to build. The second reason that this myth persists is that soap isn't the most efficient cleaner of cast iron.

How often should I season cast iron?

You should only need to fully re-season your cast-iron cookware one to two times a year, but you may also want to give it some extra seasoning love anytime you cook something that requires a heavy-duty cleaning.

Why don't you wash a cast iron skillet?

Can you wash cast iron in the dishwasher? No, uncovered cast iron should only be washed by hand and immediately dried. Washing cast iron pans in a dishwasher will likely strip seasoning off the pan, and rust can quickly form.

Can you use olive oil on cast iron?

You can generally use whatever oil you prefer, as long as the cooking temperature is below the smoke point of the oil. Olive oil, vegetable oil, sunflower oil, and grapeseed oil are all great multipurpose cooking oils—you can use them for everything from sautéing to baking.

Can I use steel wool on cast iron?

Contrary to popular belief, you can use a small amount of soap to clean cast iron cookware! Large amounts of soap can strip the seasoning off your pan, but you can easily re-season your pan as needed. Can I use steel wool or a metal scrubber to clean my cast iron pan? No!

What should not be cooked in cast iron?

What to Avoid Cooking in Cast Iron
  1. Highly Acidic Foods (Like Tomatoes) Over time, cooking with oils and fats continues to build a pan's seasoning; cooking with acidic foods can erode that seasoning. ...
  2. Delicate Fish. ...
  3. Eggs.

What destroys cast iron?

6 Mistakes That Could Ruin Your Cast Iron Skillets
  • You don't allow time for the pan to heat up. ...
  • You use the same skillet for savory and sweet. ...
  • You don't clean the pan quickly enough. ...
  • You let your skillet soak. ...
  • You don't re-season the skillet. ...
  • You store the skillet while it's still wet.

Do you clean cast iron after every use?

"Your cast iron skillet should be washed after every use, but never soaked in the sink or put in the dishwasher." To help you care for your cookware without damaging it, we're sharing how to clean a cast iron skillet or Dutch oven — including techniques using coarse salt and dish soap.

What should you never do to a hot cast iron pan when cleaning?

Things NEVER to Do When Cleaning Cast Iron
  1. Avoid Warping Your Pan – Never take hot cast iron and run it under water. ...
  2. Resist Soaking Your Pans – Soaking cast iron pans in water is just a recipe for ruining your seasoning and inviting rust.
  3. Don't Use the Dishwasher – Never put your cast iron skillet in the dishwasher.

Can you use a cast iron skillet on a glass top stove?

Cast iron cookware can be used on a ceramic glass-top stove without causing damage to the surface or pan itself. Take the stress out of dinner with the ability to cook a variety of different meals in a cast iron pan without damaging your cooktop.

What to cook first in a cast iron skillet?

Start with Vegetables

Any seared, sautéed, or pan-roasted vegetable recipe is a great place to start breaking in your skillet. Vegetables won't stick to your cooking surface like fatty proteins, and are easy to spread out over the entire cooking surface, helping to build even seasoning.

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