Cast iron skillets are beloved for their ability to sear, sauté, and bake with excellent heat retention and durability.

But while they’re incredibly versatile, there are some foods that don’t play nicely with cast iron—especially if the pan is new or not well-seasoned. T

o keep your skillet in good shape (and your food tasting great), here are the top foods you should avoid making in a cast iron skillet.

1. Tomato-Based Sauces (and Other Acidic Foods)

Why to avoid:
Tomatoes, vinegar, wine, and citrus-heavy recipes can react with the metal—especially if your skillet isn’t fully seasoned. The result? A metallic taste in your food, and potential damage to the seasoning layer you’ve worked so hard to build.

Better alternative:
Use stainless steel or enameled cast iron (like a Dutch oven) for acidic sauces and braises.

2. Delicate Fish

Why to avoid:
Flaky fish like tilapia, cod, or sole tends to stick to cast iron unless it’s extremely well-seasoned. The result? Torn fillets and a stubborn, fishy mess burned onto your pan.

Better alternative:
Use nonstick or stainless steel pans for delicate seafood. Cast iron works better for firmer fish like salmon or tuna steaks if properly oiled.

3. Eggs (If the Pan Isn’t Well-Seasoned)

Why to avoid:
Eggs can stick like glue to cast iron if your seasoning isn’t perfectly nonstick. This not only ruins breakfast but also creates a frustrating cleanup situation.

Better alternative:
Use nonstick or ceramic pans for eggs, especially if you’re cooking with little to no fat.

4. Sticky Desserts (Like Caramel or Gooey Cakes)

Why to avoid:
Caramel can burn quickly and cling to cast iron like cement, damaging the seasoning and being nearly impossible to clean off. Sticky batters may also absorb lingering flavors from savory dishes you’ve previously cooked.

Better alternative:
Use a nonstick or glass baking dish for desserts like sticky toffee pudding or caramel apple upside-down cake.

5. Long Simmered or Braised Dishes

Why to avoid:
Even well-seasoned cast iron can struggle with long cook times involving a lot of liquid. Slow braises and stews can slowly erode the seasoning over time, especially if they’re acidic.

Better alternative:
Opt for an enameled Dutch oven for soups, stews, and slow braises.

6. Strongly Flavored or Aromatic Foods (When Switching to Baking)

Why to avoid:
Cast iron absorbs and retains strong flavors and odors—think garlic, onions, curry, or fish. If you use the same skillet to bake cornbread or cake, those savory notes might make an unwanted cameo.

Better alternative:
Consider keeping a separate cast iron pan just for baking if you’re particular about flavor crossover.

Final Thoughts: It’s All About the Seasoning

Cast iron skillets are tough, but they rely on a delicate balance of seasoning and care. Avoiding certain foods—especially acidic or sticky ones—can help preserve that glossy, naturally nonstick surface. Over time, as your skillet becomes more seasoned, it’ll handle a wider range of dishes. But until then, know when to grab the cast iron—and when to leave it on the shelf.

Your skillet (and your taste buds) will thank you.