Chiff and Fipple Forums

I just saw this: it may be familiar already. A swiss company uses some sort of treatment process to make northern hemspher hardwoods harder than ebony:


http://www.swisswoodsolutions.ch/en/sonowood

more here:

https://science-stories.ch/swisswood/

Tom Aebi makes flutes out of this material. You can see some examples on his website (see the photos with a red background).