Is Cast Iron Safe to Cook With? The Ultimate Guide

Cast iron cookware is a durable and versatile option for your kitchen, but you’ve probably heard conflicting opinions on its safety. Is cast iron safe to cook with? Let’s explore the topic in-depth in this ultimate guide.

What is Cast Iron Cookware?

Cast iron cookware is made from molten iron which is poured into molds to create different shapes and sizes of pots, pans, and skillets. It’s called “cast” because the metal is cast into a form. Cast iron cookware is known for its ability to retain heat, evenly distribute it, and develop a non-stick surface over time with proper seasoning.

Is Cast Iron Safe?

Yes, cast iron is safe for cooking, as long as it is properly seasoned and cared for. Cast iron cookware doesn’t contain harmful chemicals that can leach into your food, unlike some non-stick cookware that has a Teflon coating.

Is Cast Iron Better Than Non-Stick Cookware?

Cast iron is a good alternative to non-stick cookware because it doesn’t have any harmful chemicals that can potentially seep into your food. It’s also naturally non-stick when properly seasoned, which means you can cook with less oil. However, cast iron does require maintenance, and isn’t as easy to clean as non-stick cookware.

Seasoning Cast Iron Cookware

Seasoning is the process of forming a non-stick surface on your cast iron cookware, and it’s essential to extend its lifespan.

How do you Season Cast Iron Cookware?

  • Wash the cookware with warm, soapy water and dry it thoroughly.
  • Coat the cookware with a thin layer of oil or melted shortening.
  • Place the cookware upside down on the middle rack of a preheated oven.
  • Bake the cookware at 350°F for an hour, then turn off the oven and let it cool down completely before removing the cookware.

How Often Should You Season Cast Iron Cookware?

You should season your cast iron cookware after every use to help maintain its non-stick surface. If you notice any rust or food residue sticking to the surface, it’s time to re-season the cookware.

Health Concerns with Cast Iron Cookware

Using cast iron cookware isn’t associated with any significant health risks, and it’s not harmful to your body in any way. However, excessive intake of iron may cause health issues for some people.

Is Cooking with Cast Iron Cookware Good for Anemic People?

Cooking with cast iron can help increase your iron levels if you have an iron deficiency. However, if you have iron overload or hemochromatosis, you should avoid using cast iron cookware as it can increase your iron intake to dangerous levels.

Cooking Tips for Cast Iron Cookware

How to Cook with Cast Iron Cookware

  • Preheat your cast iron cookware before adding any food.
  • Use a little bit of oil or butter to prevent sticking.
  • Avoid using metal utensils as they can scratch the seasoning on your cookware.
  • Avoid cooking acidic foods, such as tomatoes or vinegar, as they can break down the seasoning.
  • Clean your cast iron cookware with warm, soapy water and a scrub brush. Rinse and dry it thoroughly, and never soak it in water.


Cast iron cookware is a safe and healthy option for your kitchen, as long as it’s properly seasoned and maintained. It’s an excellent alternative to non-stick cookware and can last for generations if cared for properly.


  • Q: Can you put cast iron cookware in the dishwasher?
  • A: No, you should never put cast iron cookware in the dishwasher. The high heat and harsh detergents can damage the seasoning and cause rust.

  • Q: How do you restore rusted cast iron cookware?
  • A: You can restore rusted cast iron cookware by scrubbing it with steel wool or a stiff brush, then re-seasoning it.

  • Q: Can you cook acidic foods in cast iron cookware?
  • A: It’s best to avoid cooking acidic foods like tomatoes or vinegar in cast iron cookware as they can break down the seasoning.


1. Healthline: Is Cooking with Cast Iron Good for You?
2. Kitchn: How to Season Cast Iron Cookware: A Complete Guide from a Southern Kitchen
3. The Spruce Eats: The Ultimate Guide to Cast Iron Skillets
4. Taste of Home: Do’s and Don’ts of Cast Iron Cooking

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