If the burn marks of stainless steel cookware cannot be wiped off with soda or soap, then you need to put enough water in the pot to cover the burn marks, and then bring it to a boil on the fire. When it boils, add a few tablespoons of salt to the water, turn off the heat, and wait a few hours. Pour off the water and use a cleaning pad to wipe away the burn marks. If the burn marks are still there, just keep repeating the process.
One thing to note: salt should only be added after the water has already boiled. If salt is added to cold water, it may affect the service life. In addition to salt, you can also choose to add lemon juice or white vinegar.
1. Add a little vinegar to the pot, add water until it just covers the burnt area, heat the pot and wash it off.
2. Pour a little rice into the pot, add a small amount of water, cover the blackened area, let the rice ferment naturally, and then wash it.
3. Boil water in the pot, add a small amount of detergent, cover the pot, leave it for a night, and then scrub it to remove it.
4. If you have charcoal at home, you can dip the charcoal in a small amount of water to scrub the black bottom of the pot. No matter how big or thick the burnt part is, it can be washed clean.