Do you think that the aluminum pots used by rural people can be harmful to the body?

I think the aluminum pots used by rural people do not have any harm to the body, because when rural people smelt metal aluminum pots, they will add a small amount of iron, a small amount of iron can be coated with a protective layer of aluminum metal, preventing the aluminum pots from rusting, and further bring harmful elements to the body, in addition to aluminum pots are not very strict in the production of aluminum pots, the lu-containing rate is still relatively low.