1, first of all, the surface of the iron pot to get rid of the rust, such as washing with vinegar once, and then use the oil on the surface of the iron pot coated with a layer.

2, put the iron pot in a dry place, dry place without water, iron to have water rust speed, every time you use a clean iron pot and let the iron pot to keep dry.

3, rust is a chemical reaction, is essentially a metal oxidation reaction, the most common rust phenomenon is the long-term exposure of iron products in the air, and the oxygen oxidation reaction, or by the oxygen in the water erosion, become oxides.

4, the iron pot can not never rust, iron is a more active metal, at any time will react with oxygen to generate rust, although never rust can not do, but can do to slow down the speed of rust.