Torrefied Red Spruce Mandolin Top Grade AA

Thermally modified, Red “Adirondack” Spruce (P. rubens) top for Mandolin. Grade AA quality. The Thermal Modification process, aka “Torrefaction”, involves heating the wood in a sealed, air-tight, chamber with near-zero oxygen to high temperature. The result is a very stable wood of a nice brown color and resembling old wood. Perhaps most important is the decease in damping (increase is sound velocity) that results from the process of thermal modification. The photos are for reference only – all tops are unique.