Musty Smell in the case and mandolin.

[Sue Rieter]

You might just have to just leave it open to the air for a good long time. My SOL case was just a tad musty when I got it. I left it open for a few weeks, and took it outside whenever the weather was conducive (summertime in New England). It's pretty much fine now, two years later.

[Tom Sanderson]

I just treated a case with my cpap cleaning machine. It puts out ozone. I used the CPAP hose and put it inside the case with all the compartments open and put it in a big garbage bag. I ran the machine for two cycles of 30 minutes and it took away all the orders.

[Charles E.]

Tom, how many orders did you have?

[Tom Sanderson]

Not many orders, but I do have a lot of odors

[mreidsma]

In my experience, direct sunlight always works the best over time. But you can help it along! I've had luck with both very smelly cars and very smelly cases using Ozium - both the canister and the spray.

On a very persistent Harmony H-162 000 guitar that may have been used as an ashtray, I also sprayed it inside the sound hole - 2 sprays. I covered the sound hole for a few hours and the smell was gone. It was desperation, I had left the guitar in sunlight, removed the back (for repairs) and aired it out for months, and nothing would kill the smell. Ozium took care of it. I would not do this on a valuable instrument, but the guitar is now playable.

[Mercedes NM]

Idk i this might help anyone -- and full disclosure, the verdict isn't in yet -- but I bought a uke on Reverb that arrived smelling of cigarette smoke.

I ended up filling a D'Addario small instrument humidifier with baking soda up to the holes, closing it up, and putting a rubber band around it. Dropped it into the sound hole, the rubberband keeps it suspended. Then put the uke in a plastic bag, squeezed out as much air as I could, and sealed it with a twist tie.

Crossing fingers. This would work with coffee grounds as well I would think. Larger humidifier would likely work better but I used what was on hand.

[pops1]

Idk i this might help anyone -- and full disclosure, the verdict isn't in yet -- but I bought a uke on Reverb that arrived smelling of cigarette smoke.

I ended up filling a D'Addario small instrument humidifier with baking soda up to the holes, closing it up, and putting a rubber band around it. Dropped it into the sound hole, the rubberband keeps it suspended. Then put the uke in a plastic bag, squeezed out as much air as I could, and sealed it with a twist tie.

Crossing fingers. This would work with coffee grounds as well I would think. Larger humidifier would likely work better but I used what was on hand.

Charcoal and newspaper works well for this too.

[Mercedes NM]

Good idea re charcoal -- I may switch to that if the baking soda doesn't work. Or add it as a secondary. I haven't opened up the plastic bag yet to see how it's doing.

We don't get newspapers anymore (read them online)