Chrome plating sometimes turns yellow and loses its luster. Proper cleaning can remove the discoloration and mostly or completely return the chrome to its original shine. A chrome finish turns yellow because the plating was done poorly or because of the use of an abrasive chrome polish, which rubs off easily and exposes the raw metal, such as nickel, underneath.
Blend a 50/50 mixture of baking soda and dishwasher detergent. For bathroom fixtures, use about 6 fluid ounces of detergent and 6 tablespoons of baking soda.
Apply the mixture to the polishing cloth and polish the chrome surface. Polish in circular motions where possible to avoid scratching the surface.
Remove any residual cleaning solution after the initial polishing, using a clean cloth.
Apply the polishing solution directly to the chrome surface if discoloration is hard to remove. Use steel wool to remove stubborn yellow stains, pressing down lightly on the surface but not hard enough to scratch it.