How do you clean a stained key?
What is the best cleaner for piano keys?
Over-the-counter hydrogen peroxide available from any pharmacy, is safe for piano keys. Dampen a cotton pad with hydrogen peroxide and use the pad to wipe down the piano keytops (back to front) between players.
How do you clean old brass keys?
Combine the juice of half a lemon with a teaspoon of baking soda and stir until it becomes a paste. Apply the paste with a soft cloth. If the tarnish is heavy, let the piece sit with the paste on it for 30 minutes. Rinse with warm water and dry.