Anyone that has iron dishes inside their home would agree that they really are a big hassle to clean. You really have to look into a lot of details before even thinking about using iron dishes in the house, leave alone making food in them. People often opt out of buying iron dishes, because they believe that people shouldn't be cooking food in them.
However, if you do have an iron dish, you cannot do anything about it other than cleaning it with precision. This is exactly why you should clean your iron dishes with sea salt, because sea salt can help clean these dishes in the most profound manner. There is no room for complains left and you have a clean dish right in front of you. Do try this method out once.