Cleaning Cast Iron: Easy Steps For Sparkling Pans

Cast-iron pans are a must-have for any home cook, but keeping them clean can be a challenge. While it's important to avoid using steel wool, putting cast iron in the dishwasher, or soaking the pan in water, there are several effective ways to clean cast iron cookware.

Use hot water and a sponge or stiff brush

To clean a cast iron pan, you'll need hot water and a sponge or stiff brush. You should wash the pan by hand using hot water. Avoid using the dishwasher, as this can cause rusting.

Scrub off any stuck-on food with a sponge or stiff brush. You can also use a pan scraper to remove stubborn, stuck-on food. If there is still food residue, try scrubbing with a paste of coarse kosher salt and water, then rinse or wipe with a paper towel.

Make sure to dry the pan thoroughly with a lint-free cloth or paper towel. You can also dry it on the stove over low heat. It's important to ensure that the pan is completely dry to prevent rusting.

Once the pan is dry, you can apply a light coat of vegetable oil or cooking oil to the surface using a cloth or paper towel. This will help protect the pan and keep it in good condition.

Avoid dishwashers, soap, and steel wool

When it comes to cleaning cast iron pans, there are several methods to avoid, including dishwashers, soap, and steel wool.

Firstly, it is strongly advised not to put cast iron pans in the dishwasher. This is because the dishwasher will remove the seasoning from the pan and likely cause rust. Instead, cast iron pans should always be washed by hand. If you do accidentally put your cast iron pan in the dishwasher, make sure to rinse it well and then re-season the pan.

Secondly, while some sources claim that you can use a small amount of mild soap to clean cast iron, others caution that soap should be avoided altogether. This is because soap can strip the seasoning from the pan. Conventional wisdom dictates that soap and cast iron don't mix, but some modern articles suggest that a tiny amount of soap won't do any harm. However, it's important to note that even a small amount of soap can strip the seasoning, so it's best to avoid it if possible. If you do use soap, make sure to rinse the pan well afterward.

Finally, while steel wool can be effective for removing rust from cast iron, it's not recommended for regular cleaning. This is because steel wool can be too abrasive and may strip the seasoning from your pan. Instead, it's best to use a pan scraper, a chainmail scrubber, or a nylon scrubbing brush to remove stuck-on food. If you do use steel wool, it should only be for removing rust, and you will need to re-season the pan afterward.

In summary, to clean a cast iron pan, avoid using the dishwasher, limit or avoid the use of soap, and steer clear of steel wool for regular cleaning. Instead, opt for hand washing with hot water and a sponge or stiff brush, and use alternative methods like salt or a pan scraper to remove stuck-on food. Always dry your pan thoroughly and re-season it if needed.

Scrub stuck-on food with salt and water

To clean a cast-iron pan, you'll need coarse salt, a clean kitchen rag or paper towel, and water.

First, pour 2 to 3 tablespoons of coarse kosher salt into the pan. If you have a smaller pan, 1 tablespoon will do. It's important to use coarse-grained salt to provide the traction needed to remove food particles.

Next, use a clean kitchen rag or a folded paper towel to gently move the salt around the pan, scouring the surface. Continue scouring until all unwanted food and residue have been cleaned off.

Once you're done, discard the salt and rinse the pan with warm water. Dry the pan with a rag or paper towel, and then place it on the stovetop. Heat the pan over medium-low heat for about 5 minutes or until you see the first wisp of smoke.

Let the pan cool until it's safe to touch, then wipe it down with a thin layer of cooking oil or seasoning oil. You're looking to coat the skillet but not leave a thick layer of oil—the pan should still have a matte appearance.

This process will help remove stuck-on food from your cast-iron pan while also encouraging the development of seasoning.

Dry the pan on the stove over low heat

Drying your cast iron pan is an important step in the cleaning process, as any remaining water droplets can cause rust to form. To dry your pan on the stove, place it on a burner over low heat until all the water has evaporated. You can then wipe the inside of the pan with an oiled paper towel. Neutral oils with high smoke points, such as vegetable, canola, grapeseed, or flaxseed oil, are best for this purpose.

Ensuring that your cast iron pan is thoroughly dried after cleaning will help to keep it in good condition and prevent rust from forming. This is an important step to follow, especially if you do not plan on seasoning your pan after cleaning.

If you are unable to dry your cast iron pan on the stove, you can also use a clean cloth or paper towel to thoroughly towel-dry the pan. However, it is important to use a kitchen towel that you don't mind getting stained, as the process of drying a cast iron pan can leave your towel looking dingy, even after washing.

After drying your cast iron pan, it is recommended to apply a light coat of oil to the inside of the skillet. This will help to keep your cast iron in good condition and prevent rust from forming.

Oil the pan with a cloth or paper towel

Once your cast iron pan is clean and thoroughly dry, it's time to oil it. Using a cloth or paper towel, apply a light coat of vegetable oil or melted shortening to the inside of the skillet. Some people also like to oil the outside of the skillet. Buff to remove any excess. Make sure there is no excess oil on the skillet. A super-thin coating is what you're aiming for.

If you've had to use steel wool to remove rust from your pan, you'll want to re-season it. This involves rubbing the pan with oil and baking it in the oven.

If you're using a new pan for the first time, it's a good idea to give it some extra protection by seasoning it before you use it for the first time. Always season it again after each use.

Frequently asked questions