Would be mushroom growers can always buy this growing set, as well as several other products, direct from Back to the Roots at the regular price of $19.95/box. But, if you purchase two mushroom garden boxes through the Foodiacs site up until 11:59 am EST on September 20, you'll receive a third box and classroom curriculum to be donated to the school of your choice.
My own Back to the Roots garden box just arrived in the mail today. In fact the inner plastic bag filled with 100% coffee grounds growing medium and the beginnings of what I hope will be a bumper crop of tasty mushrooms is submerged in a bucket of cold water for 24 hours right now, as it says on the directions. Stay tuned to hear about the results of our first-time foray into mushroom growing -- We could be harvesting our first crop in less than 2 weeks.