Is it OK to scrape cast iron skillet?

Author: Dr. Jeramie Beier V  |  Last update: Monday, June 16, 2025

Wash your cast iron cookware by hand. You can use a small amount of soap. If needed, use a pan scraper for stuck on food. For stubborn, stuck-on food, simmer a little water for 3-5 minutes, then use the scraper after the pan has cooled.

Is it safe to use a scratched cast iron skillet?

It is generally not recommended to use cast iron cookware that is heavily scratched or has deep gouges in the cooking surface. This is because the scratches can create a rough surface that may trap food particles, making it difficult to clean and potentially harboring harmful bacteria.

Is it okay to scrub a cast iron skillet?

After you've used your skillet, use a sponge to scrub it with water. But don't let it soak in water, as this can cause rusting. If it still needs a bit more attention, add some kosher salt to the pan and scrub with a damp sponge.

Is it safe to grind cast iron?

Exposure to iron oxide, a substance sometimes encountered in cast iron grinding, is a danger, as well. This substance has been associated with cases of pulmonary siderosis, an occupational lung disease. Iron dust is also listed by OSHA as a combustible dust.

Is black residue on a cast iron skillet harmful?

This black residue from your cast-iron pan doesn't look great, but it's just seasoning and it's not harmful. Keep cooking in that pan, washing and drying and oiling it meticulously, and you'll see the issue clear up quickly.

Simple rules for cast iron care

What damages a cast iron pan?

If cast iron is left in the sink to soak, put in the dishwasher, or allowed to air dry, it will rust. It can also happen when you store your cookware in moisture-prone environments, such as a cabinet near a dishwasher, an open cabinet in a humid location, or stored outside.

How do you not ruin cast iron?

Caring for Cast Iron

With soap if it needs it. Scrubbing with the rougher side of a sponge if it needs that to remove food particles. Don't use steel wool, and do dry it completely. Then, put another tiny bit of oil in and rub it all over, wipe it away, and put it over a burner for a few minutes.

Why do restaurants not use cast iron?

All cast iron, whether natural or coated, has a much higher carbon concentration than other popular food-safe metals like stainless steel and aluminum. This means that natural cast iron is more susceptible to corrosion because when carbon combines with oxygen and water, rust forms.

Should I oil my cast iron after every use?

That's why our simple cleaning steps have you rub oil into your pan after each use to ensure the seasoning remains for quality cooking. You can also season your cast iron cookware in the oven. This method adds a more thorough layer of seasoning onto the entire pan, strengthening the bond to the iron.

Why can't you wash cast iron with soap?

Decades ago, soaps were made with lye and vinegar, and they were too harsh for use on cast iron pans. They would indeed strip away oil and could remove seasoning. But today's soaps, especially ones that are made with eco-friendly solutions, are often too mild to remove seasoning.

Should you scrub a cast-iron skillet?

Avoid scrubbing your cast iron with anything too abrasive, like a steel wool or stainless steel scouring pad, that might scrape off the desired build-up. While your cookware is cool enough to touch, wash it with a few drops of mild dish soap and a stiff bristle dish brush. Rinse the pan.

Is it OK to use a scratched pan?

A 2022 study found that scratched pans coated with these chemicals release thousands to millions of microplastics and nanoplastics. You should avoid using any scratched or dented nonstick pan to avoid exposure to potentially toxic chemicals.

When should you throw out a 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.

Is scratched cast iron safe?

Would you believe us if we told you that this scratched pan is safe and healthy to cook in? Well, it is! Many people who are new to cooking with seasoned iron get concerned when their AUS-ION pans begin to lose their dark, even colour.

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.

Is a cast-iron skillet ever ruined?

Your cast iron isn't ruined if it gets rusty, even from a dishwasher mishap. 🛠️ Our rust eraser brings cast iron back to brand new in no time. 💛 Here's how to revive your cookware: 1. Use the rust eraser on a dry pan to scrub away rust.

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.

Why does my cast iron pan keep wiping black?

They are most likely carbon deposits. This happens due to overheating of fats and oils. Using an oil with a low smoke point will carbonize at high temperatures and cause residue from the pores of your pan to rub off onto your food. While unappealing, they won't hurt you in such a small amount.

What happens if you don't season cast iron?

Cooking on unseasoned cast iron can result in sticking, rusting, and a myriad of other issues (some of which are outlined above). Lucky for cast-iron newbies, most skillets sold these days come pre-seasoned. Take your store-bought seasoning a step further though and add your own before you call it good to go.

Can you scrub cast iron too much?

Over-cleaning your cast iron pan is unnecessary and will only stand to damage your seasoning.

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.

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.

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