How do I know when my cast iron skillet needs a new one?

Author: Prof. Ariel Dare  |  Last update: Friday, October 17, 2025

When Should You Throw Away Your Cast Iron Pan?
  1. Cracks. Many cast iron pans develop cracks over time, especially when used frequently at high temperatures. ...
  2. Chips and Holes. Your cast iron pan could start chipping for various reasons. ...
  3. Warping. Another sign of cast iron damage is warping.

How do you know when you need a new cast-iron skillet?

Check for warping as well by using a credit card or some other flat surface as a reference against the cooking surface of the pan, and check if it wobbles or spins on a hard flat surface. Minor warping isn't necessarily a dealbreaker, most of my vintage skillets are a little warped and they cook fine.

When should you throw out a cast iron pan?

If the frying pan is''non-stick'' and the surface is flaking,stciking or very rough it should be replaced. If it is stainless steel or aluminum and is warped so it does not sit evenly on the burner it should be replaced. If it is cast iron or carbon steel it can be cleaned, reseasoned and good as new.

How often should I replace a cast iron pan?

After Seasoning or Re-Seasoning a cast-iron skillet, it should last you a lifetime! I believe the best way to maintain good cast iron pans is simply to use them, because the more you use them, the more thin layers of fat and oil get cooked into the skillet. Therefore, the more non-stick they become.

What is the lifespan of a cast-iron skillet?

With proper care cast iron cookware can withstand a lifetime of use. Actually several lifetimes as these cast iron pans and dutch ovens are often passed down from generation to generation. Taking care of cast iron cookware is as easy as 1 – 2 – 3.

Simple rules for cast iron care

How do I know if my cast iron pan is bad?

The more you use a rusted pan, the more iron you'll consume in your food. It's best to avoid cooking with a rusty cast iron pan. If it's reached the point of corrosion or deep rust, throw it away rather than risk your and your family's health.

Can you bring a cast iron skillet back to life?

A cast iron skillet can almost always be brought back to life and its age is often seen as pro rather than a con. That's why thrift stores and estate sales are great places to find cast iron skillets inexpensively.

Should you oil cast iron after every use?

That's why our simple cleaning steps have you rub oil into your pan after each use to ensure the seasoning remains for quality cooking. You can also season your cast iron cookware in the oven. This method adds a more thorough layer of seasoning onto the entire pan, strengthening the bond to the iron.

How do I know if my cast iron pan is good?

Features to Look for in Cast Iron Cookware
  1. Handles: Check on the cookware's handles. ...
  2. Thickness and weight: In general, with cast iron, the thicker and heavier it is, the better. ...
  3. Quality of enamel coating: If you're buying a cast iron pan that's enameled, make sure that the enamel is high quality.

Do cast iron pans get better with age?

With proper care, a good cast iron pan can last for generations, becoming even better with age.

What will ruin a cast iron pan?

6 Mistakes That Could Ruin Your Cast Iron Skillets
  • You don't allow time for the pan to heat up. ...
  • You use the same skillet for savory and sweet. ...
  • You don't clean the pan quickly enough. ...
  • You let your skillet soak. ...
  • You don't re-season the skillet. ...
  • You store the skillet while it's still wet.

Why don't you wash a cast iron pan?

Cast iron is a big hunk of iron, after all. Too much exposure to water will cause it to rust. You can still salvage a rusted pan by scrubbing and re-seasoning it, but it's more of a pain than just wiping the skillet dry every time you use it.

When to replace cast iron?

If your cast iron pipes are over a few decades old, it's likely time for an inspection or replacement, even if you haven't noticed any visible signs yet. Pipes of this age are nearing the end of their lifespan and are prone to significant wear and tear, making regular inspections crucial.

Can I use olive oil to season cast iron?

Since olive oil is such a pantry staple, many people naturally wonder if they can use olive oil to season cast iron. You can use olive oil to season cast iron, but you need to choose a high quality extra virgin olive oil, which should have a smoke point close to 400 degrees Fahrenheit.

How to know if a cast-iron skillet is bad?

Depending on the level of warping, this can affect the cooking performance — your food will likely not cook so evenly with the oil pooling. If it's so warped that it can be knocked over easily from the cooktop, it's time to get a new cast iron skillet.

What is the lifespan of cast iron pan?

Keep It Seasoned

Seasoning cast iron is an easy process which makes it different from other pans. You season it once and it's good for decades.

What does a healthy cast iron pan look like?

A well-seasoned cast iron pan should be dark black, shiny, and smooth to the touch. Unseasoned cast iron has a rough look and feel until it is properly seasoned. Here are some sure signs of damage and misuse: It's covered in rust.

Do you really need to season a cast iron skillet?

Most cast iron skillets these days come pre-seasoned, meaning they're ready for cooking on as soon as you take them out of the box. However, over time, the seasoning erodes, and you'll need to re-apply it by brushing the skillet with a thin layer of neutral oil and heating it until the oil bonds to the metal.

Which oil is best for cast iron?

All cooking oils and fats can be used for seasoning cast iron, but based on availability, affordability, effectiveness, and having a high smoke point, Lodge recommends vegetable oil, melted shortening, or canola oil, like our Seasoning Spray.

Can you use Pam cooking spray on cast iron?

Do not try to use nonstick sprays like Pam to season your cast iron skillet, as they contain other ingredients that aren't good for your pan.

When should you throw away cast iron?

If a crack appears in your cast iron pan, it's time to ditch it. Even a hairline crack will expand and contract when heated and cooled, and ultimately the pan will split—a potentially dangerous situation if it happens during cooking! Plus, cracks are difficult to clean and may harbor bacteria and rust.

Does coke remove rust from cast iron?

Yes, Coke contains phosphoric acid which helps remove rust from cast iron. Pour Coke on the rusted area and wait 15 to 20 minutes for the acid to break down the rust. Then wipe the pan with a scrubby sponge or dish towel. Repeat this process until the rust is completely gone.

Who makes the best cast iron pans?

Our Top Picks
  • Best Overall: Lodge Blacklock Cast Iron Skillet at Amazon $60. ...
  • Best Budget: SALE. ...
  • Best Enameled: Le Creuset Enameled Cast Iron Skillet at Amazon $220. ...
  • Best Splurge: Stargazer Cast Iron Skillet at Amazon $135. ...
  • Best Set: Lodge Seasoned Cast Iron 5-Piece Set at Amazon $100. ...
  • Most Versatile: ...
  • Best Grill Pan:

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