Soak the pan in hot, soapy water for 1 hour. This will loosen any food particles that have been baked on the bottom of the pan.
Use a nonabrasive sponge with a drop of dishwashing liquid to scrub away surface stains.
Add 2 teaspoons vinegar to 2 cups of warm water in the pan. Boil the mixture for 5 minutes to remove discoloration caused by cooking acidic foods, such as tomato sauce. Run the pan under cold water to rinse away the solution.
Place a mixture of 2 tablespoons of cream of tarter and 1 quart of water in the pan to remove tarnish from it. Boil the mixture in the pan for 10 minutes, then rinse with cold water.
Remove burned milk stains with a layer of table salt. Pour salt over the stain, then let the pan sit for 10 minutes. Rub the stain carefully with a nonabrasive sponge, then rinse the pan with cold water.