Just FYI, you do wash cast iron, you just don’t use detergents on it. One common method is to dump a handful of salt and a tiny splash of water into the pan and start scrubbing. You can use a gentle dish soap, but I’d avoid using the dishwasher, because those detergents will be a lot stronger and will actually ruin the seasoning (as well as linger on the surface and end up in your food, which is also bad).
Modern soaps/detergents don’t contain lye, which is what ruins the seasoning. It’s the humid drying of a dishwasher that causes it to rust. Nothing to with the detergent.
Just FYI, you do wash cast iron, you just don’t use detergents on it. One common method is to dump a handful of salt and a tiny splash of water into the pan and start scrubbing. You can use a gentle dish soap, but I’d avoid using the dishwasher, because those detergents will be a lot stronger and will actually ruin the seasoning (as well as linger on the surface and end up in your food, which is also bad).
Modern soaps/detergents don’t contain lye, which is what ruins the seasoning. It’s the humid drying of a dishwasher that causes it to rust. Nothing to with the detergent.