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Things not to cook in a cast iron skillet: smelly foods like garlic, acidic foods like tomatoes, and flaky fish.
Cheapism / LauriPatterson/istockphoto

Cooking with cast iron is a go-to for many, a right of passage for some, and intimidating for plenty of people, too. From the proper ways to season and clean your cast iron cookware to what foods are best to cook in these pans, there are plenty of nuances to understand. 

Here are six things you should never cook on cast iron. 

1. Fish

Baked Tilapia in a Lemon, Garlic and Butter Sauce
LauriPatterson/istockphoto

If you’re cooking fish, especially delicate varieties, cast iron might not be your best bet. Flaky fish like tilapia won’t hold up to cast iron the same way a steak will. Instead, your fish might fall apart completely and stick to the pan, creating an obnoxious mess. Even if you’re dealing with a meatier fish like salmon, you won’t often flip your fish without incident on cast iron, and you’d be better off opting for non-stick.

Related: Cast Iron vs. Stainless Steel: Which Pan Should You Cook With?

2. Eggs

Frying Egg in a Cooking Pan in Domestic Kitchen
GMVozd/istockphoto

You might be able to get away with cooking eggs on an extremely well-seasoned cast iron skillet, especially if you’re cracking them into a pan that you just finished frying bacon in. But often times, if you try and scramble eggs, make an omelet, or even just fry eggs in a cast iron skillet, you’ll wind up with eggs stuck to the bottom of the pan.

3. Dessert (In Certain Situations)

Hot Homemade Chocolate Chip Skillet Cookie Ready to Eat
bhofack2/istockphoto

We love a good skillet cookie or brownie. Just try and remember where your cast iron skillet has been before making dessert on it. If you just fried chicken in it the night before, your cookies could end up tasting like fry oil since the cast iron is porous and absorbs those flavors.

4. Highly Acidic Foods

Shakshuka, fried eggs with tomatoes, onion, red pepper and spices in cast iron pan. Top view.
Anastasia Dobrusina/istockphoto

If you’re careful with this, you should be okay to move forward, but generally speaking, it’s not a great idea to introduce too much acid to your cast iron skillet. We’re talking lemon juice, vinegar, and tomato sauces. If you simmer ingredients like that for too long, they can begin to break down the pan. 

Related: 13 Things You Should Never Clean With Vinegar

5. Smelly Foods

Roasted Garlic with Salt, Pepper, Thyme and Olive Oil in a Cast Iron Skillet
LauriPatterson/istockphoto

This concept goes hand-in-hand with our warning about dessert. If you’re working with pungent ingredients, you should plan on their flavors lingering on the cast iron skillet for a couple cooks after the fact. 

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6. Anything Super Sticky

Seared Scallops and Asparagus over Polenta
rudisill/istockphoto

If your pan is well-seasoned, you have a little more wiggle room with sticky foods, like grits, apple cobbler, and certain sauces. But on a new cast iron skillet, you should tread lightly and avoid anything sticky unless you want it to stick to the bottom of your skillet.

Meet the Writer

Rachel is a Michigan-based writer who has dabbled in a variety of subject matter throughout her career. As a mom of multiple young children, she tries to maintain a sustainable lifestyle for her family. She grows vegetables in her garden, gets her meat in bulk from local farmers, and cans fruits and vegetables with friends. Her kids have plenty of hand-me-downs in their closets, but her husband jokes that before long, they might need to invest in a new driveway thanks to the frequent visits from delivery trucks dropping off online purchases (she can’t pass up a good deal, after all). You can reach her at [email protected].