Cast Iron 101 :: How to Season Cast Iron


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How to Season Your Cast Iron Skillet – With these simple steps and a little care, you can enjoy your cast iron for years, while preserving it for future generations.

Cast Iron 101 -- How to Season Cast Iron //

There’s no doubt about it, I most definitely love my cast iron cookware. Nothing comes close to the taste of food cooked in an iron skillet!

Cast iron will last for generations if cared for properly, so I am passionate about taking care of it. I received many of my skillets, dutch ovens, covered casseroles, and other pieces from my grandmothers or my husband’s grandmothers. The pieces passed down to me are priceless heirlooms in my mind. I want to use and continue to maintain these prized iron skillets and dutch ovens for my son and his future family, just as my loved ones did for me.

Cast Iron Care

After my Grandmother passed away,  Mama and her brother gave each of the granddaughters one of Grandmother’s skillets. We all sat and cried at the treasure we had just received. So many memories were made around family meals cooked with love by my Grandmother with those very skillets. And now, each time I use them, I have a little piece of my heritage with me in every meal I prepare.

I was given one piece of cast iron that my father had stored in his basement for many years, a beautiful footed skillet that was used to cook over an open fire. I understand that it dates back to the 1860’s and I’m sure it has stories to tell if it could just tell them. And while I’ve not used this old piece for cooking, it is a great example of old cast iron that needs to be properly cared for prior to use. That’s where a heavy duty cleaning and good seasoning come into play.

How to Season Cast Iron

1. Clean It

First, you’ll need to do heavy cleaning on your cast iron. This can be accomplished a couple of ways. Here are some options:

Scrub. Give your piece a really good scrubbing using the method I describe in How to Clean Cast Iron.

Sandblast. If the scrubbing method I mentioned before still doesn’t clean it, you can take it to a local collision center for sandblasting to remove all of the rust and residue. Make sure that they use the walnut shell method of sandblasting.

Heat in Oven. I’ve not used this method, but I’ve heard of placing your cast iron in your oven when you use the self-clean feature. Be sure to place a sheet of foil underneath the cookware to catch any of the residue that will burn off of it. Please note that I’ve not used this method myself. I am always concerned with the extreme heat in the self-cleaning cycle and am not sure I want anything in my oven during that time.

2. Dry It

Once your cast iron has been heavily cleaned, wipe it with a damp cloth or wash it under running water to remove all of the remnants of the cleaning.

Then, place onto the stove top over low to medium heat to make sure you get your cast iron bone dry before proceeding.

3. Rub It

While your cast iron is still warm to the touch, carefully rub a thin film of vegetable shortening or lard on it using a paper towel.

Once you have coated the entire piece, take another paper towel and wipe away any excess shortening or lard.
Note: if you have too much oil left on your cast iron for the next step, it will become sticky and will not season properly.

How to Season Your Cast Iron Skillet - With these simple steps and a little care, you can enjoy your cast iron for years, while preserving it for future generations. //

4. Line It

Preheat your oven to 375 degrees Fahrenheit.

Place aluminum foil on each of the racks of the oven. The foil should catch any spillage.

5. Season It

Place your cast iron onto the aluminum foil lined rack in an upside down position. This will allow any runoff of the vegetable shortening or lard onto the foil.

Then, bake for 1 hour.

Remove from oven and wipe with about one tablespoon of shortening while still warm.

With a little care and maintenance, you can enjoy using your cast iron for years, while preserving it for future generations.

Do you have a favorite piece of cast iron? I’d love to hear about it.

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About Robyn

Robyn Stone is a cookbook author, wife, mom, and passionate home cook. Her tested and trusted recipes give readers the confidence to cook recipes the whole family will love. Robyn has been featured on Food Network, People, Southern Living, and more.

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  1. Saliyhah Wadud says:

    Your posting gives me hope. I purchased my cast irons about 3 years ago. I’ve done much to them to make them grease free (so to speak) I treat them as preciously as I can but I still need to oil my pans every time I use them. I use water when I clean them then I dry them very well and oil them. What can I be doing wrong?

    1. Robyn Stone says:

      Saliyhah, read the process I describe in the How to Clean Cast Iron. I don’t clean mine with water but I do rub a little oil into my pans and then heat on stovetop on low heat for a few minutes. I hope this helps.

  2. Linda Hardy says:

    If you place your cast iron amid flames such as in a fireplace, you run the risk of cooling it off too fast and warping it. it’s not really advisable.