Jeff Chilton, raised in Pacific Northwest, studied ethno-mycology at the University of Washington in the late sixties and started working on a commercial mushroom farm in Olympia, Washington in 1973. Jeff co-authored the highly acclaimed book, The Mushroom Cultivator, which was published in 1983. In the 1980’s he operated a mushroom spawn business and in 1989 he started Nammex, a business that introduced medicinal mushrooms to the US nutritional supplement industry. In 1997 he organized the first organic mushroom production