Burnt food and Burn marks on pans. Clean it easily
If you have a burn marks on a pan, boil some water and a few ounces of pearl barley in the pan. let it cool and stand overnight, then clean as usual. The stains should lift out.
If you have a pan that you burnt some food in, just boil a few cups of water with a cup a vinegar added. This loosens the burnt on foods so you can wipe it away!