One of the easiest and most effective ways to clean a burnt pot is to use vinegar. Cover the bottom of the pot with vinegar (9%) and let stand for 1-3 hours. As the burn softens, carefully remove it. You can reduce the smell of vinegar by putting the pot in a bag or covering it with plastic wrap. Then air the room and wash the dishes as usual. However, do not use it for cleaning enamel cookware.