Yes, it is okay to sand a cast iron pan, but it is generally not necessary. Many people sand modern pans (like a standard Lodge skillet) to achieve a smooth-as-glass cooking surface similar to vintage cookware. However, sanding too smoothly can sometimes make it harder for the initial layers of seasoning to grip the metal.
You cannot damage the pan as with sand paper or sand blasting. The wire wheel will flex if you attempt to put too much pressure on it and brass or bronze is softer than the iron. Of course, the pan will need to be re-seasoned.
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.
The best way to clean a cast iron skillet is to follow three simple steps: wash, dry, and oil. Do it immediately after cooking while the pan is still warm, and never put it in the dishwasher.
Instead, Amidor recommends “cooking with cast iron once or twice a week, especially if someone has iron-deficiency anemia and no issues with too much iron in their diet.” Preparing a more acidic dish, or something with a lot of moisture, is likely to absorb more iron from your pot or pan.
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.
Avoid cooking highly acidic foods (like tomatoes and citrus), delicate fish, and sticky foods (like eggs and pancakes) in a brand-new, unseasoned cast iron skillet. These ingredients can strip the pan's seasoning, leach metallic tastes into your food, or create a frustratingly stuck-on mess.
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.
It's not bad to leave oil in cast iron. It's perfectly ok to leave most cooking oil types in a cast iron Dutch Oven; but, “only for a few days”. If left too long, the oil tends to deteriorate (get rancid, get sticky, create nasty polymers, change the smoke point, etc.).
These are the most common symptoms in the first 6 hours after ingestion.
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.
Yes, you can absolutely use a small amount of mild dish soap to clean cast iron. The rule against using soap is an old myth dating back to when harsh lye-based soaps stripped the protective seasoning from the metal. Modern dish soaps are gentle and safe to use.
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.
To sand cast iron smooth, use an angle grinder or orbital sander with 60- to 80-grit abrasive discs to remove high spots and factory bumps. Transition to finer 120- and 220-grit sandpaper for a polished finish. Afterward, wash thoroughly, dry completely, and immediately apply multiple layers of seasoning.
To strip cast iron back to bare metal, the easiest and most common approach is a 3-step process: remove stubborn carbon build-up with a lye bath or oven cleaner, dissolve rust with a vinegar soak, and scrub vigorously. Once you reach bare metal, you must re-season it immediately.
Yes, you should wash your cast iron pan after every use to remove food debris, fats, and bacteria. Contrary to popular myth, a well-seasoned pan is highly resilient, and washing it correctly won't strip away its protective, non-stick coating.
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.
When you wipe a cast iron skillet and the paper towel comes away black, you are usually picking up carbon buildup (burnt food residue) or unbonded seasoning. It is incredibly common and usually means the pan needs a slightly deeper scrub.
What Not to Cook in a Cast-Iron Skillet
Yes, Dawn dish soap is perfectly safe for a well-seasoned cast iron skillet. Modern mild dish soaps are gentle enough to remove food debris and grease without stripping the pan's polymerized non-stick coating (seasoning).
The easiest way to clean a cast iron skillet is to wash it while it's still warm using hot water, a mild dish soap, and a scrub sponge. Dry it completely on the stovetop, then rub a very thin layer of neutral cooking oil over the entire surface before storing.
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 healthiest skillet to use is one free from toxic coatings like Teflon (PTFE) and harmful forever chemicals (PFAS/PFOA). Cast iron, carbon steel, and stainless steel are universally regarded as the safest, longest-lasting options, while ceramic-coated pans provide an easy-release alternative without the plastics.
Yes, you absolutely use oil in a cast iron skillet. It is essential for cooking to prevent sticking and for maintaining the protective, non-stick "seasoning" layer. High smoke point oils like vegetable, canola, or grapeseed oil are ideal for cooking and seasoning.