How Do I Actually Clean a Cast Iron Skillet?

By now, I’m sure we’ve all heard of, if not worried ourselves about non-stick pans. “Are non-stick pans toxic”, etcetera etcetera. As a result, many opt to use a kitchen tool as old as time, the cast iron skillet. However, if you're anything like me, you might've struggled with cleaning and caring for this kitchen tool. 

I recall the first time I heard my parents talking about a cast iron skillet. The next thing I remember was hearing, 'How on earth do you clean this thing?' quickly followed by, 'Oh god, no—don’t use soap!' We’ve all heard many common things about cast iron skillets: always season your pan, don’t use soap, clean with salt, and skip the steel wool, so let's go over an easy guide on caring for and cleaning your cast iron skillet. 

Seasoning

Don't get too hungry. We’re talking about seasoning your skillet, not a steak. Seasoning creates a protective, nonstick layer that prevents your pan from rusting and makes cooking easier, ultimately helping it last as long as possible. While seasoning is typically done when you first get your pan, it should be incorporated into regular upkeep as dull spots start to appear on your skillet.

To season it, (1) just rub a small amount of neutral cooking oil, like vegetable, Avocado, or Flaxseed, all over the surface of the pan. Make sure not to use too much oil—a thin layer works best.

(2) Then, place the skillet upside down in the oven at 450°F and bake it for about an hour.

Image credit: Lodge Cast Iron 

(3) Let it cool, and repeat the process a few times to build a good nonstick layer. 

Cleaning

So you’ve just finished cooking —

(1) make sure to let the skillet cool down a bit before handling.

(2) Once it’s cool enough, scrape off any food residue with a utensil, like a flat spatula, being careful not to scratch the seasoning.

(3) Run the skillet under hot water and wipe it clean with a sponge. No need to use soap (more on that later).

(4) After washing, dry the pan with a paper towel or cloth. If you have time, put the skillet on the stove over medium heat to ensure all moisture evaporates. Doing this helps to prevent rust.

(5) Once dry, reduce the heat and apply a thin layer of oil to the pan. This helps protect the skillet and maintain the seasoning. 

So... What's the Deal with Soap and Salt?

You’ve probably heard all sorts of advice when it comes to cleaning your skillet, especially about soap and salt. 

In regards to soap, some do suggest that you clean your pan with a small drop of soap. The reason it's generally advised against is because too much can erode your seasoning, making it lose those non-stick properties. The result of this is having to season your pan more often.

The salt situation: Coarse salt is sometimes suggested as a way to clean your skillet since it works as an abrasive to help loosen any stuck-on food without scratching up your pan. You can just sprinkle some coarse salt (kosher or sea salt) in the skillet, add a little water, and give it a good scrub with a sponge or cloth. It’s an easy, natural way to get rid of any caked-on bits while still keeping your seasoning intact.

Taking care of your cast iron skillet might seem like a bit of extra work, but it's worth it. With proper seasoning and cleaning, you’ll have a pan that just gets better with time and could easily last for decades. Stick with the routine, and your skillet will be a reliable kitchen tool for years to come.