To clean a very dirty cast iron skillet, boil water inside it to loosen stuck-on food, scrub it with a coarse abrasive (like kosher salt or a chainmail scrubber), and wash with mild dish soap if needed. Immediately dry completely on the stovetop and rub in a light layer of neutral oil.
If it's solid and intact, you can absolutelyrestore skillet surfaces, even if they look terrible.
To clean a cast iron skillet with burnt-on food, the best method is the boiling water and baking soda technique. Add water and 1 tablespoon of baking soda to the pan, boil for 5 minutes to loosen the gunk, scrape gently, scrub with salt, dry completely, and re-season with oil.
Let's take a look at how rust occurs and ways you can tackle it so you can start cooking again in no time.
Detergents aren't made with lye, so can't be soap. Either way you still shouldn't use soap with cast iron, but can use detergents, though there is no reason to do so. You can easily clean well maintained cast iron without it.
Most people know the Classic WD-40® Multi-Use Product works great for preventing rust, but are you familiar with WD-40 Specialist® Rust Remover Soak? The formula quickly dissolves rust from tools, metal, cast iron, chrome parts, and more with a formula that does not use acids or caustic chemicals.
Yes, vinegar reacts with cast iron because it is a mild acid, which can be both useful and harmful depending on the application. While it is excellent for dissolving rust in short-term applications, long-term contact will etch (eat away at) the metal, destroying the seasoning and causing permanent damage.
Getting that burnt black residue out of your pan is easy with a simple baking soda and vinegar boil. For a basic clean, coat the bottom with a 50/50 mix of water and white vinegar, boil for 5-10 minutes, then add 2-3 tablespoons of baking soda. Let it cool, then easily wipe away the loosened burn marks.
It is almost impossible to truly ruin a cast iron skillet. Because it is a single, thick piece of solid metal, nearly any issue—like heavy rust, flaking, or a burnt, sticky mess—can be completely restored.
Yes, you can absolutely restore a cast iron skillet! Even severely rusted or caked-on pans can be salvaged to look like new.
Yes, old cast iron can be highly valuable, particularly as collectible cookware. While raw scrap iron is only worth about $0.06 to $0.08 per pound, well-maintained antique and vintage pieces—especially those made by sought-after makers—routinely sell to collectors for anywhere from $𝟓𝟎 to over $𝟏,𝟎𝟎𝟎.
Cleaning a crusty cast iron skillet involves a quick, effective process. Heat the pan, scrub it with a coarse salt or baking soda to remove the crust, dry it completely over a hot burner, and apply a thin layer of oil to restore the pan's seasoning.
How to Clean Rusted Iron
Yes, you can absolutely just wipe out your cast iron skillet with a paper towel if you only cooked something simple or left very little residue. The hardened, polymerized oil coating (the seasoning) is tough. However, to maintain a sanitary cooking surface, you must wash the pan with water and a little dish soap if food residue or strong flavors are left behind.
Mistake 3: Soaking the Pan in Water
Cast iron rusts when exposed to moisture for long periods. A water soak can undo months of seasoning and require a full restoration. Wash quickly with warm water and a soft brush while the pan is still warm. Dry it immediately on low heat until all moisture evaporates.
To easily get burnt-on black residue off a pan, use the boiling water and baking soda method to lift stains naturally.
Glass is not well-suited for baking soda, due to its abrasive nature. In fact, you might accidentally scratch your mirrors or windows if you attempt to clean them with baking soda. If you're looking for an all-natural cleaner for these surfaces, vinegar is a better bet.
If you've burnt food in a cast iron skillet or dutch oven, keep water, soap and acidic items such as vinegar or lemon juice away from your pan as they can create rust and destroy the pan's seasoning. Baking soda, however, is still your friend when it comes to cleaning up a burnt food mess from your cast iron pan.
While white vinegar is an excellent natural cleaner, its acidity means it can damage certain surfaces, strip finishes, or cause rust. You should generally avoid using it on:
Any food-safe cooking oil or shortening will work, but our Test Kitchen experts prefer vegetable oil or canola oil. WHAT'S THIS DARK RESIDUE I SEE WHEN I CLEAN MY CAST IRON? Occasionally, you may notice some dark residue on your paper towel or cloth while cleaning it.
A minimum of 1 hour is typically needed for an average rusty pan, and you should see the rust starting to fall away from the iron surface after this. Once you take the pan out of the vinegar solution, give it a good scrub with a nylon brush.
You should only throw away a cast iron skillet if it has a crack, a warped base that causes it to wobble on the stove, or severe structural damage like a hole. Because cast iron is incredibly durable, almost all other issues—including heavy rust or thick, burnt-on food—can be completely restored.
Yes, Coke can remove rust. It works because it contains phosphoric acid, which breaks down iron oxide.
Yes. Scrub the pan with steel wool to get rid of the rust and then wash it with hot water and a bit of soap. You will likely remove some of the seasoning during this process so you probably will have to re-season the skillet.