Composting program with used coffee grounds
May 22, 2014
Kansas State University
Used coffee grounds from a campus coffee shop are being used as compost to cultivate gourmet mushrooms at a student farm. By composting alone, 50 pounds a week -- or about 30 percent of the coffee shop's total waste -- has been diverted from landfills. While developing the compost program, the researchers made an important discovery: coffee grounds are a great compost for cultivating mushrooms, particularly gourmet mushrooms, such as oyster, shiitake and reishi. The U.S. gets nearly 45 percent of mushrooms from China, and there is a need for more local suppliers of gourmet mushrooms, said one researcher.