This is an Non coated pot, no addition of any chemical substances,and it is beneficial to the human body by the supplemental elements: iron, You need to keep this pot dry so that it achieve the non-stick pan and prevent rust. Before use, you need to thoroughly clean the pot, and then dried in the fire, Pour some edible oil with a small fire ,and evenly coach the oil to each angle of the pot for ten minutes, waiting for the pot natural cooling, (if you find black dust during process of wiping ,don't worry, is a normal phenomenon) (Note: If you start cooking food with very low temperature, it is also easy to stick pot). Maintenance. How to prevent this pot rust? 1. The color of the pot will change when you just start use it. 2.