How To Clean Piano Keys Plastic. They destroy the texture allowing for further damage and can be carried by air onto other delicate parts or surfaces. For most pianos, regular dish soap and a washcloth will do the trick.
Wipe a damp cloth over a bar of ivory soap and use the soapy cloth to wipe each key lengthwise. Dip a soft white cloth into the cleaning solution: Disinfect keys with a solution comprised of 3 parts filtered water to 1 part white vinegar, using the general cleaning tips mentioned above.
Plastic keyboard keys will become discolored if exposed.
Irrespective of the material the key is made from, they all still get dirty at some point and need cleaning. If you find that the milk and toothpaste is not enough to brighten and clean your piano keys, the best solution would be. For more aggressive stains or fingerprint marks on your piano keys, you can use a water and vinegar solution. Wash your hands and make sure they’re completely dry before sitting down at the piano to play.