Dongcun iron pot is generally made of burning materials such as soybean stalks, cotton stalks and branches. A big fire and a high temperature are also harmful to the pot. In addition, the iron pot is easy to rust and needs rust removal. After the bottom of the pot is blackened, the ash at the bottom of the pot will be removed. Over time, the pot will become thinner and thinner. Careless, a little hard, the pot will break.