Wood Sensitivity Test

I always give myself an overnight patch test to determine sensitivity to any suspected wood. First, I make a saw cut somewhere on the waste part of the wood to get under any surface coating or oxidation. Then I create some sanding dust, which I put on a bandaid, and then stick it to the soft skin on the underside of my upper arm, and leave it there overnight.

If there is a blister or a red spot the next morning, it means I have a sensitivity to the wood of some sort, and I can't use it. If there is nothing under the bandaid, however, I am good to go.

For me, a red spot is an indication of respiratory sensitivity and a blister suggests skin sensitivity.