You should only throw away a cast iron skillet if it has a crack, a warped base that causes it to wobble on the stove, or severe structural damage like a hole. Because cast iron is incredibly durable, almost all other issues—including heavy rust or thick, burnt-on food—can be completely restored.
Yes, cooking with iron cookware can be an additional way to increase your iron intake. This strategy works when the acids in food interact with the iron in the cookware, leading to a small release of iron into the food. The body can absorb the released iron when eating food cooked on iron cookware.
STRONG: The sleek, sturdy Nordic design allows you to move your cast iron pan in and out of your Ooni with ease.
With proper care, the lifespan of cast iron cookware is almost indefinite, and cast iron pots and pans often become family heirlooms. Replace it only if it cracks, warps, or has severe rust that can't be ground off and reseasoned.
Yes, cooking with cast iron pans can contribute to high ferritin levels. While safe for most people, the iron in the pan transfers into your food, and your body absorbs it. This effect is particularly significant for individuals with underlying genetic conditions or those who frequently eat acidic foods.
These are the most common symptoms in the first 6 hours after ingestion.
For healthy individuals, it is highly unlikely to get iron poisoning from cast iron pans. While the cookware does transfer small amounts of dietary iron into food, the amount is usually small enough to be safe or even beneficial for preventing iron-deficiency anemia.
A cast iron skillet is ruined primarily by rust from soaking or improper drying, warping from extreme thermal shock (like cold water on a hot pan), or cracking if dropped. While most seasoning issues are reversible, letting rust cause deep pitting, or fracturing the iron, destroys the cookware permanently.
Several potential problems arise when your cast iron pan begins to crack. Heat will make the metal expand and contract, growing even the tiniest of fractures. This can become hazardous, especially if the pan is hot or is full of hot food. Cracks also harbor bacteria because they're more difficult to clean.
Yes, you can absolutely use Dawn dish soap on cast iron.
Avoid cooking highly acidic foods, delicate fish, strong-smelling dishes, and sticky foods (like eggs) in cast iron. These can strip your pan’s seasoning, leach metallic flavors into your food, or leave behind lingering odors.
Iron deficiency occurs when your body lacks enough iron to produce hemoglobin, a protein in red blood cells that carries oxygen from your lungs throughout your body. When oxygen levels drop, you can experience a variety of physical and mental symptoms.
Cooking in a cast iron skillet can add anywhere from 1 to 7 milligrams (mg) of iron to your food per serving.
One serving of eggs (2x 60g eggs) provides 1.7mg of iron, which represents 14% of the Recommended Dietary Intake (RDI) for adults and 17.5% for children aged 9-13 years.
Wear and tear is normal in residential pipe systems. One frequently asked question is “How long do cast iron drain pipes last?” Cast iron waste pipes last anywhere between 50 and 100 years. However, it may be time to replace cast iron pipes long before their lifetime is up.
The difference between cheap and expensive cast iron comes down to weight, surface finish, and craftsmanship. While budget pans are thick, heavy, and have a pebbly texture, premium pans are machined to a silky smoothness, weigh significantly less, and heat up faster.
Yes, you can absolutely just wipe out your cast iron skillet with a paper towel if you only cooked something simple or left very little residue. The hardened, polymerized oil coating (the seasoning) is tough. However, to maintain a sanitary cooking surface, you must wash the pan with water and a little dish soap if food residue or strong flavors are left behind.
Mistake 3: Soaking the Pan in Water
Cast iron rusts when exposed to moisture for long periods. A water soak can undo months of seasoning and require a full restoration. Wash quickly with warm water and a soft brush while the pan is still warm. Dry it immediately on low heat until all moisture evaporates.
A black residue on your paper towel is normal. It is usually just loose carbon from burned food or seasoning, or harmless magnetite (black iron oxide) that builds up on cast iron. Your pan is perfectly safe, but you may need to adjust how you clean it.
Any food-safe cooking oil or shortening will work, but our Test Kitchen experts prefer vegetable oil or canola oil. WHAT'S THIS DARK RESIDUE I SEE WHEN I CLEAN MY CAST IRON? Occasionally, you may notice some dark residue on your paper towel or cloth while cleaning it.
Yes, you can absolutely use Dawn dish soap on cast iron.
Soaking a cast iron skillet for a few minutes to loosen stuck-on food won't ruin it, but leaving it to soak for hours or overnight can cause significant damage. Extended soaks soften the seasoning layer and allow water to reach the bare metal, resulting in rust.
You should only throw away a cast iron skillet if it has a crack, a warped base that causes it to wobble on the stove, or severe structural damage like a hole. Because cast iron is incredibly durable, almost all other issues—including heavy rust or thick, burnt-on food—can be completely restored.