While rummaging around the internet, I came across a very good article written by Hamilton Morris of Vice Magazine interviewing some German guy that was allegedly doing huge extractions...Let me know your thoughts!
www.vice.com
personally, I don't think the Elf's had anything to do with it. But maybe the healing part.
Hamilton's Pharmacopeia
It may seem like exploding meth labs are a recent phenomenon, but the exploding drug-manufacturing facility predates modern science. Chinese alchemists discovered gunpowder while searching for the elixir of immortality. Moonshine explosions
personally, I don't think the Elf's had anything to do with it. But maybe the healing part.