How to Remove Discolorations From Aluminum Pans

Alkaline foods, such as potatoes, will cause discoloration on aluminum pans, but you can brighten them to their original shine with acidic substances. Some dish detergents or high mineral concentrations in water may cause darkened aluminum, too, which may require an increased amount of acid for cleaning. Allow pans to soak in hot water to loosen burnt-on foods and then scrape away any buildup with a wooden or plastic utensil---this will help the process of removing discoloration from aluminum.