Does anyone have experience boiling wood before drying? I have heard it releases the internal tensions in burl and crotch woods so they not only dry better (less defect), but dry faster. I have heard this is the preferred process for madrone in the west.
(Sawing and Drying Forum)
From Professor Gene Wengert, forum technical advisor:
Boiling wood, which would also include steaming wood, has been researched. In fact, when using a preservative for treating, sometimes the wood is boiled in the preservative. The process is actually covered by a patent issued to Danny Elder a few years ago. When boiling wood or heating it to 212 F in a saturated atmosphere, the amount of moisture in the cell walls is reduced to about 22% MC (instead of 30% MC), so some shrinkage does occur. When the wood is brought out into the open after steaming, it immediately has a large amount of flash off of moisture. The process also seems to open up the wood so subsequently it dries faster.