[header] How to clean a dull stainless steel sink [title] Choose a moderate abrasive. [step] Abrasives can scratch your sink's finish, so use them only for an occasional restoration project, or to remove stubborn stains. Try stainless steel polish, whiting, talc, or baking soda. 
Apply one of these to a slightly damp cloth. [title] Rub in the direction of the finish lines.