If you have fruit tree burls or burls like madrone there are two ways you can semi-stabilize the burl.
1. Pressure cook the block:
a. I have a friend in New York who gets 12×12 x 6 blocks of Madrone and when he gets them the first thing he does is throws them in the pressure cooker for one hour.
b. Let the water cool down until you can comfortably take the blocks out with your hands. Then re-wax them until ready to turn the block.
c. Rough turn and watch it. You may have to pressure cook it again.
2. When you get your block
a. Rough turn the block to about 1 ½-1” walls.
b. Then for every 1” you boil for one hour.
c. Set it on a shelf and wait for it do dry.
d. It may move a bit but you can turn it out and finish
Pressure cooking retains more of the natural color of the wood.
Boiling takes it out and blends the color.
The cool thing is that either way you get a dye that you can soak your T-shirts in and dye them. LOL!
There are times where this will not work. If the burl does not want to be tamed it won’t. So another process is to turn it to about 1/8” walls, wet sand to finish and let it go. Madrone will twist and distort. This is my favorite way.
-- Greg, Southern Oregon, www.oregonburls.com What can I say but God Is Good!