The iron pan is rusty and can't cook. You need to remove the rust from the pot before you can continue to use it. Rusty iron pots can be burned on a big fire until black smoke comes out. Put the grease into the wok and constantly wipe the wall of the wok until the grease turns into oil residue. Iron pots rust easily, so they are not suitable for holding overnight food and are not recommended for making soup.

Rusty iron pots can't be used for cooking. Rusted woks can't be used for cooking, because the rust on the wok is not good for your health, which is different from the iron you need. Therefore, it is necessary to clean up the rust on the wok before continuing to use it.

Rusty wok can be burned to black smoke, and then the oil is put into the wok, and the wall of the wok is constantly wiped until the oil turns into oil residue. After about 10 minutes, the remaining impurities in the pot are wiped clean to remove rust.

Cooking in wok will dissolve inorganic iron and rust easily. Therefore, the iron pot is not suitable for holding food overnight, and it is not recommended to use the iron pot to make soup, so as to avoid the disappearance of the edible oil layer on the surface of the iron pot, and cooking will play a role in sticking to the pot.