Although the term "stainless" implies that stainless steel won't stain, it only means that the steel won't rust or corrode. Stainless steel contains a layer of chromium that reacts with oxygen to create a barrier over the steel. When kept clean and dry, stainless steel maintains its durability. Residue, water and harsh abrasives can interfere with the chromium's ability to protect the steel, resulting in stains. Remove stains from stainless steel pans with mild products to restore its appearance.
Apply club soda to a non-abrasive scouring pad and rub the stain with the pad. Check the pan to see if the stain disappeared.
Rinse the scouring pad with clean water and pour white vinegar onto the sponge. Vinegar helps to remove heat stains and polishes the surface.
Rub the vinegar-soaked scouring pad onto the stain. Rinse the pan and check to see if the stain has been removed.
Remove the toughest stains by rinsing the scouring pad with clean water. Sprinkle a small amount of non-abrasive cleansing powder onto the scouring pad.
Scrub the stains in one smooth direction. Wipe over the entire pan to evenly polish it while removing the stains.
Rinse the pan thoroughly with warm water and wash it with 1 tsp. dish soap on the scouring pad.
Rinse the pan with clean water and dry it with a towel.