Reishi mushroom coffee is an infusion of dried reishi mushrooms ground into powder and mixed with coffee. It can be taken instantaneously, in ground form or via special coffee pods made available through coffee makers such as moka pot, dripper and cezve machines. Reishi mushrooms contain various beneficial constituents that may provide healthful benefits; high doses can result in decreased blood clotting; thus it should not be combined with certain medications such as blood thinners.