The ivory keys of your piano have turned yellow? It is a normal phenomenon but it is not very aesthetic.
How to resurface the keys of your piano but above all clean them without damaging the piano?
Fortunately, there is a natural and simple trick to maintain the ivory keys of an old piano. This is to use sawdust.
1. Squeeze a lemon.
2. Mix sawdust in lemon juice to make a paste.
3. Using a cloth, spread this mixture on the keys of your old piano.
4. Be careful not to spill any between the keys!
5. Let it dry.
6. Remove by rubbing lightly.
And There you go ! The ivory keys of your piano have regained their whiteness :-)