If you buy a new iron pot and wash it improperly for the first time, it will easily rust. Do not rinse with water for the first time. Instead, heat the pot first, pour some cooking oil (preferably vegetable oil) into the pot, then put some green vegetables into the pot, and then use a spatula to evenly scrub around the pot. Later, pour some boiling water into the greasy pot and boil the tea leaves. The pots washed out in this way are less likely to rust.

Opening and maintaining the new iron pot:

1. Prepare a piece of raw fat pork;

2. Remove all labels on the body of the new iron pot , wash the pot body with running hot water; dry the water (especially the bottom of the pot), place the pot on the stove, and dry it over medium-low heat

3. Put the raw fat pork into the pot and use a kitchen tong "Press" the raw fat pork and use it as "soap". Wipe it continuously on the inner wall of the pot in a spiral shape from the inner circle to the outer circle, so that the overflowing fat evenly covers the entire pot surface.

4. As you keep wiping, more and more melted black lard will overflow in the pot, and the "soap" will turn black and smaller;

5. The entire pot Remove from the stove, pour off the black lard, wipe it clean with kitchen paper, wipe the pot dry with hot water, put the pot on the stove and repeat the steps

6. After the surface of the raw fat pork is charred, you can use a knife to cut it. After removing the surface layer, continue wiping it into the pot; with each additional round of wiping, the pot surface will appear cleaner than before. Do this until the raw fat pork no longer turns black; (repeat about 3-4 times)

7. Rinse the iron pot with hot water and dry it, place it on the stove to dry over medium-low heat, apply a thin layer of vegetable oil with kitchen paper, and the "pot maintenance" is done.

Reference source Baidu Encyclopedia--Iron pot