I would stay away from.
Pine, fir or balsam as well as anything from the
cedars or Debriegia family (Cocobolo and cousins) Stay With Maple, Cherry, Walnut or other hardwoods. I mentioned Cocobolo in particular because it nearly killed my best friend. If the paramedics had been 5 minutes farther away he would have died. I had made him a set of Cocobolo salt and pepper grinders for his anniversary. it was 6 weeks later at the dinner table he went into anaphalactic (sp) shock. After weeks of tests it was found to be allergic to the oils in the Cocobolo family. It seems that every exposure is worse than the last one. He know carries a E-ppie pen like they use for bee stings.
For what its Worth,