This mushroom kit from Back to the Roots grows between 2 and 4 pounds of mushrooms, and each kit also uses just recycled coffee grounds as its growing medium! The grounds are from Peet's Coffee & Tea. Every week Back to the Roots, which is based in Emeryville, CA, collects about 10,000 pounds of grounds from the shops and repurposes them into these DIY mushroom kits. The way the kits work is simple: Open the box, mist on a little water, and watch the mushrooms grow. I bought one of these for my husband for Christmas and I'm getting a little impatient, waiting for him to get it going! I want to see those little mushrooms sprout!
• Find them! Easy-to-Grow Mushroom Garden Have you ever tried one of these, or another mushroom kit? What did you think? Related: DIY Oyster Mushroom Kit