Solution
1. Acid vinegar method: vinegar can remove rust. Very effective. First heat the pot and turn off the heat. Use a rag and vinegar to wipe the rusty area directly. Normal rust will fall off immediately.
2. Lard method: There is rich oil in lard, so don't be afraid of rusting. Put the fat pork in the pot without putting oil. When the oil in the pork comes out, continue. Coat the inside of the pan with lard with oil.
3. Taomi water: The decontamination effect of Taomi water is very strong. Soak it in the thicker rice water for 2-3 hours.
Bring the rice water to a boil, and rub it with an iron rag while it is burning. After rubbing the pot, wait for the rice water to boil. The rice water is boiled, let it cool, and drain it. Just rinse with clean water.
4. Steel ball: The stolen goods of the steel ball can be removed. Slowly rub off the rust with steel wire and clean it.
Pour a small amount of oil into the pot to heat up, and slowly turn the spoon to allow the oil to cover all parts of the pot. Heat it until it smokes, repeat it several times, it will not rust easily.
5. Sandpaper or whetstone; use them to remove rust quickly and thoroughly. Use sandpaper or a sharpening stone to remove the rust. Rinse with clean water.