Clean your cast iron cookware after every single use. Doing this immediately while the pan is still slightly warm makes it incredibly easy and prevents stuck-on food, bacteria, and rust from ruining your seasoning.
For individuals with diagnosed iron deficiency or anemia, cast iron cooking alone is not going to provide enough iron, and additional dietary modifications or iron supplements may be necessary." It's also worth noting what type of iron you'll absorb from employing this material in the kitchen.
Yes, you can absolutely use Dawn dish soap on cast iron.
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.
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.
Cast iron skillets can last a lifetime—and even last for generations when cared for properly. Because they are built from a single, durable piece of metal, they do not wear out like traditional non-stick pans. Even if a pan develops rust or loses its seasoning, it can almost always be stripped down and restored.
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.
No, it is not bad. Modern, mild dish soaps are completely safe to use. The old "no soap" rule comes from decades ago when soaps contained harsh lye, which stripped the skillet's seasoning. Today's gentle dish soaps simply cut through grease without harming the baked-on, nonstick layer.
Avoid using these common items and methods with your cast iron to protect the seasoning and prevent rust:
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.
Health Benefits: If you're wondering whether cast iron or pure iron is better for your health, the good news is that both are excellent. They both leach small amounts of natural iron into your food, helping to boost your daily intake. Maintenance: Both need seasoning with oil to stay rust-free and smooth.
When it comes to natural, everyday beverages, prune juice has the most iron, delivering about 3 mg (roughly 17% of your daily value) per 8-ounce cup.
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 cast iron pan is properly seasoned when it has a smooth, satin-black surface and repels water. To verify its readiness, perform the quick water drop test and paper towel test to ensure the layer of polymerized oil is intact and fully hardened.
If it's solid and intact, you can absolutelyrestore skillet surfaces, even if they look terrible.
Yes, you can absolutely use Dawn dish soap on cast iron.
Cleaning a cast iron skillet is simple: wash it by hand with warm water and a brush or gentle sponge. For stuck-on food, scrub with kosher salt. Never let it soak or put it in the dishwasher. Immediately dry it on the stove, then apply a microscopic layer of oil.
If you are doing a full oven seasoning (applying a very thin layer of oil and baking the pan), 3 to 4 coats are ideal to build a solid, protective foundation. Most factory-preseasoned pans are lightly coated, so adding 2 to 3 extra layers prevents sticking and rusting.
Detergents aren't made with lye, so can't be soap. Either way you still shouldn't use soap with cast iron, but can use detergents, though there is no reason to do so. You can easily clean well maintained cast iron without it.
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.
Yes, you can clean cast iron with vinegar, but only for specific restorative jobs (like removing rust). Because vinegar is highly acidic, it will instantly strip your pan's protective seasoning. Never use it for daily cleaning.
Cast Iron Cons
Unfortunately, iron is prone to rusting and long-term effects will harm the material. Frequent exposure to moisture will only accelerate the process. Cast iron is a very heavy material which makes working with it very difficult.
The best cast iron skillet depends on your budget and maintenance preferences. For raw cast iron, Lodge is the undisputed best value, while boutique brands like Field Company and Smithey offer premium, smooth-surface alternatives. If you want a non-stick option without seasoning, Le Creuset is the premium enameled choice.
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.