Did you check out his website? I believe he has several hundred hives and they are chem free. all of em. he has been in ventrilo chat on sat. evenings and if you have time should try to tune in and ask him some questions.
I just might! I asked because I dont know the answer. Bees wax is a very interesting substance w/ lots of good and bad attributes. It absorbs so many types of contaminants. The only source of chemicals is not just the beekeeper, but the entire environment. I analogize it to "organic" honey claims. Clearly, i would prefer a beek who uses no chems, which i think is as good as its going to get in the real world.