Where to Buy Ganoderma Coffee Ganoderma coffee offers an innovative new way of taking medicinal mushrooms by combining the beverage with powdered reishi mushroom extract - an experience many already enjoy. The product is made up of coffee and powdered mushroom extract. Ganoderma, commonly referred to in China and Japan as Lingzhi mushrooms and Reishi respectively, has long been used as an effective medicinal herb to support immune health and fight off free radical damage in the body. G...