1. Apply the cleaning solution evenly to the surface of the black or burnt stains on the pot.
2. Stick two or more layers of paper towels, spray again with the cleaning solution, then wrap the entire pot with plastic wrap.
3. Leave for 8 to 24 hours depending on the level of black stains, remove the plastic wrap and paper towels
4. Wipe clean with a scouring pad and hot water.