用洗洁精刷 is a big no-no for cast iron. 洗洁精can penetrate the tiny holes and you will end up with that flavor in food. The traditional way of cleaning it is to heat it up and put some table salt and paper towl to rub against the surface the discard the salt. That's how you can effectively remove oil or food residue.
【在 k******a 的大作中提到】 : 用洗洁精刷 is a big no-no for cast iron. 洗洁精can penetrate the tiny holes : and you will end up with that flavor in food. The traditional way of : cleaning it is to heat it up and put some table salt and paper towl to rub : against the surface the discard the salt. That's how you can effectively : remove oil or food residue.