[Alan Brinton]

In addition to earlier discussion about deodorizing, I recently posted about giving a melodica a bath:

Give your melodica a bath!

Since then I have done this with several vintage melodicas to reduce sticky key problems and eliminate any loose internal debris (some of which will come out with an older melodica). Vinegar (30% maybe?) won’t cause any harm, and it will deodorize. I’d suggest first submerging and soaking in plain water for an hour or two, then soaking for an hour or so with the vinegar mix, and then again for an hour or so in plain water. But I wouldn’t do this with a Hohner Professional (or Solist), a Clavietta, or with some other exotic vintage models such as early Italian ones).