Everything you need to know about how to use a cast iron skillet. From how to season cast iron, to cooking with it, tips for cleaning, and everything in between. This is my favorite kitchen tool and with proper care, it will be yours as well for many years.

everything you need to know about cast iron

Cast iron has been my skillet of choice for many years now. There are only two things that get better with age in the kitchen.

One is cast iron and the other is homemade sourdough starter!

I seasoned my skillets when I first bought them years ago and haven’t had to repeat the process since. With proper care, cast iron will last forever.

It is a kitchen essential and so worth learning how to use. I’m telling you, cast iron cooking is where itโ€™s at.

From breakfast to dessert, and every meal in between, cast iron is my absolute favorite way to cook so many recipes. They can easily go from stove top to baking, making them an overall winner when it comes to versatility.

This post contains affiliate links, which means I make a small commission at no extra cost to you. See my full disclosure here.

Benefits of Cast Iron

sourdough dutch baby in a cast iron skillet topped with frozen raspberries and blueberries with whipped cream and powdered sugar on top

Healthier

Reason #1, of course, is it doesn’t have all the bad stuff. Nonstick pans are coated with a carcinogenic chemical  called perfluorooctanoic acid.

Not only does it leech into the food when cooked at high temperatures, but also produces toxic fumes in the air. Not to be overly dramatic, but you need to get that stuff out of your house ASAP.

Although the health concerns with nonstick was what drew me to using cast iron in the first place, the ease and beauty with which they cook kept me coming back for more.

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Non-Stick

A well seasoned pan is wonderfully non-stick and with proper care it will stay that way. Even if you make something a little sticky, it usually doesn’t take too much work to get it non-stick again.

overhead photo of sourdough cranberry French toast casserole in a cast iron skillet

Delightful Cooking

A perfectly fried egg, potatoes so crispy you can hear the crunch, a carmelized sear on a roast to seal in all those delicious juices… I mean, if you aren’t cooking with cast iron, is it even cooking?

Give me that 20 pound skillet that gets better with use every. single. time. If I go on vacation, and the condo has a flimsy nonstick and a plastic spatula, I cook like I have one hand. Total handicap.

Last For Generations

It is nearly impossible to break a cast iron skillet. Sure it may need to be re-seasoned, but otherwise they will last nearly forever and can even be passed down from generation to generation.

Cast iron is where itโ€™s at, my friends. 

Frequently Asked Questions About Cast Iron

tips for cooking with cast iron

Can you use cast iron on a flat top stove?

Cast iron can scratch a glass-top stove.

There is also concern that a hot cast iron pan could cause the cold glass top to shatter, because the skillet holds so much heat. Cast iron is extremely heavy, so if it is dropped on the glass-top it might break.

All that aside, I used to cook with cast iron on a glass stove top daily in our old house, and did for many years. I never had a problem.

I put the question out on my Facebook and Instagram page, and it seems all my die hard cast iron fans pay no mind to such suggestions.

No one reported a problem. So, although technically cast iron on a glass cook top is a no-no, you will likely suffer no consequence, should you decide to be a rebel like me and all my social media friends.

tips for cooking with cast iron how to season in it and clean it

How to Season Cast Iron

  1. Scrub cast iron with hot soapy water to get off any rust, if there is any. A stainless steel scrubber is very handy for this.
  2. Dry well with a towel.
  3. Lightly coat the cast iron with coconut oil.
  4. Cover the bottom, top, handle, and every part of the skillet with the oil.
  5. Wipe off the excess oil with a tea towel.
  6. Place it upside down in a 450 degree oven for an hour.
  7. Repeat until it has a black shiny luster, if necessary.

You can watch me go through this process with a couple of thrift shop skillets in the video below.

Best oil to season cast iron:

You want to choose an oil that has a high smoke point. Coconut, avocado, and lard (if using frequently) are the healthiest options, but almost any cooking oil will work.

You can also use this homemade cast iron seasoning recipe found here.

cast iron skillet with creamy mushroom chicken sauce with herbs

How to Cook with Cast Iron

The biggest key to successful cast iron cooking is preheating. Never drop food into a cold cast iron skillet. It will stick. It is also important to flip, and stir, as little as possible.

  1. Preheat skillet. See above. This is a crucial step.
  2. Add a little bit of fat whether it be butter, oil, lard or tallow, etc.
  3. Add your food and cook. That simple.
  4. Then follow the how to clean cast iron directions below.

Watch me cook over-easy eggs in the “Everything You Need to Know About Cast Iron” video at the end of this blog post, to see how cast iron can truly be nonstick.

sourdough peach cobbler in a cast iron skillet with peaches and a plaid towel in the background

Best foods to cook in cast iron

There is a bit of a learning curve to cast iron cooking, but once you get the hang of it you’ll never go back! I promise.

tips for cooking with cast iron how to season in it and clean it

How to clean a cast iron skillet

Cast iron is naturally nonstick when seasoned properly. If nothing is sticking to the pan, you can simply wipe it out until the next use.

If something gets really stuck on, remove it with a little water and a stainless steel scrubber. Use a tea towel to wipe off any excess water. The pan should be completely dry before putting it away.

Since I use my cast iron skillets so frequently, they sit out on my stove at all times. Because of this, I don’t find it necessary to thoroughly clean them unless something is stuck on.

The only reason I ever have to clean them out is if I cook something like ground beef or chicken. Some parts of the meat get stuck on the pan. Also, if I make cheesy eggs, or pizza, the cheese likes to stick.

When I make  sourdough pancakes, or English muffins, little bits of batter get stuck on the outside edges, since the edges couldn’t get close enough to the heat source to be preheated. I am able to wipe the bits of batter off with a dry tea towel, without a proper washing.

Two rules of cleaning cast iron:

The two rules of cleaning cast iron are:

  • Don’t use soap.
  • Make sure every part of is dried thoroughly.

To note: you should never put cast iron in a dishwasher or allow it to sit in the sink because rust can develop and rust is bad. If your pan does get rusty, it can usually be salvaged with a lot of elbow grease and re-seasoning.

I never put my cast iron skillets directly on my quartz countertops. There always seems to be just a little bit of water, either on the skillet or the counter, and rust spots show up almost instantly.

Everything You Need to Know About Cast Iron Video

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My Cast Iron Skillet (Lodge Brand 12″)

My Cast Iron Waffle Iron

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74 Comments

  1. YEN says:

    How often do you have to season the cast iron skillet? Is it every time you cook? Thanks

  2. Josie Harmon says:

    Hi Lisa! Love your blog and vlogs!
    So I washed all the rust off and dried them before the re seasoning process and both skillets just came out all rusty still. Do I have to wash them again? Or just re oil and bake again?

    1. Lisa says:

      If they are rusty, they need to be cleaned again and dried thoroughly before re-seasoning.

  3. Marsha says:

    Hi Lisa,
    I too have glass top burners. One is 8.25 inches in diameter and the other burner is 9 inches. Should I get an 8 inch skillet or 9 inch. The larger the better, but if the 9 inch skillet wonโ€™t work well on the 8.25 inch burner, then I guess Iโ€™d be better off with the 8 inch? Are your skillets larger than your burners?

    1. Lisa says:

      I have one really large pan that goes outside the edges of the burners, and I don’t like using it as much. I would recommend sizes that aren’t much bigger. I would say the 9″ is fine though, because thats not much bigger. The one I have is several inches bigger.

  4. Georgia says:

    Hi Lisa,
    I love your blog! I find your tips so helpful.
    I have been cooking with cast iron for a long time. Something we love to cook in them are fresh salmon filets. The salmon comes out amazing and crispy on both sides. The problem is that because they are porous, the skillets smell like fish for days. Do you have any suggestions for removing odors?
    Thanks!
    Georgia

    1. Lisa says:

      I do tend to have that problem with fish. It’s one of the only times I thoroughly clean them, even when nothing is stuck on. I just scrub it with hot water and a stainless steel scrubber. I wipe it out with a dry towel, and that usually does the trick!

  5. Karissa says:

    Loved this video! I got some preloved cast iron and went to season them this weekend and the house filled with smoke. Not at an alarming rate or anything, but enough to where the smoke detectors kept going off until it all aired out. I thought I coated them pretty lightly and wiped away excess, coconut oil, but am just wondering if this is any cause for concern?

    Thank you ๐Ÿ™‚

    1. Bethany says:

      It just means you burnt your coconut oil. The smoking point is 400 degrees for refined coconut oil. If it is unrefined coconut oil the smoking point is lower. So if you don’t want it to smoke you can season it at a lower temperature. Use beef tallow or lard instead. Or open all your windows and let it smoke.
      I like to put aluminum foil under my pan in the oven to avoid the oil dripping onto the heating coil in the bottom of the oven, which also causes smoke.

      1. Natalie B says:

        I used unrefined cold pressed coconut oil and it still smoked. Turn it down to 400ยฐ so hopefully that will help.

  6. Laura says:

    I tried seasoning mine. They had been previously strip. But the coconut oil got all drippy even though I wiped it really good. What am I doing wrong? I tried scrubbing it off but itโ€™s stuck really good and now Iโ€™m not sure if itโ€™s ruined.

    1. Lisa says:

      It’s probably not ruined! Put it in the oven on really hot to burn anything off. Then scrub it with a stainless steel scrubber and soap. After it is full dry, add a very thin coating of oil and repeat seasoning. ๐Ÿ™‚

  7. Beth says:

    Hi! I used soap on mine washing it once. Is it ruined? Thanks!!

    1. Lisa says:

      Definitely not! Its basically a rule not to, but my mom always uses soap on hers. She doesn’t listen to that rule. lol

      1. Beth says:

        Should I read-season it after using soap to wash it?

        1. Lisa says:

          Only if the food is sticking to it. Otherwise, you’re good!

  8. Barbara says:

    Hi Lisa, I use cast iron all the time. After every use I clean it with water and then dry it with a paper towel and re-coat it with coconut oil. After watching this video, I realized that I was cleaning it too much. But here’s my question….When will it need more seasoning? My cast iron skillets sometimes look dull and don’t have that shine. That’s why I re-coat it with coconut oil. Maybe following your guidelines will change the surface. Thanks for a great video!!

    1. Lisa says:

      Are they still pretty nonstick? If you don’t heat the oil after I don’t think they are penetrating into the cast iron.

  9. Barb Dean says:

    I have a cast iron that I seasoned, but after I use it and rinse with water, then dry, the towel always gets black from the inside of the wet skillet. What’s my problem? Thanks!

    1. Lisa says:

      Oh yes that always happens, you’re not doing anything wrong! Just make sure to not use a towel you’re worried about getting dirty. ๐Ÿ™‚

  10. Briar Rose says:

    I love this post! Thanks so much for all your tips. I was given a vintage set and would love to start using them. My question is, if rust does show up is there a way to fix the problem? I wonโ€™t name names but one of mine was soaked and now itโ€™s rusty and yucky and certainly doesnโ€™t look as lovely as the others and so it stopped me from using them since. Thanks again! โค๏ธ

    1. Lisa says:

      Yes, just make sure to scrub it all off really well before you re-season! ๐Ÿ™‚

    2. Dan says:

      I love all your shows, you are a great home maker. I wish you and your husband and family , a great and safe Merry Christmas .

    3. Samantha says:

      Hi! I love your blog!!
      Thanks for this post; this definitely helps so much!!

      Quick question, where do you get your coconut oil and what kind do you use?