As the most commonly used traditional cooker, the iron pot has a self-evident effect on human health. A small amount of iron dissolved in traditional wok cooking is easily absorbed by human body, which can effectively prevent the occurrence of iron deficiency anemia and is very beneficial to human health. Moreover, the iron pot has become a healthy cooker recommended by the World Health Organization to the whole world. However, the stubborn rust that can't be carved out of the roots makes people more worried when using iron pots.

The rust in the iron pot is iron oxide produced by the chemical reaction between iron atoms in the iron pot and oxygen atoms in the air. Experiments show that the main reason why the incidence of liver disease in urban people is higher than that in rural people is that they absorb too much iron oxide, and the most direct and harmful thing is the damage of iron oxide to human liver. Therefore, the harm of rust to human body has always been a health topic concerned by experts and scholars. So there is no harm.