The Re-Ground coffee cup is made from a unique composite consisting of spent coffee grounds, potato starch, agar agar, and liquid glycerin. A sugar based coating is applied and finished with a food safe wax to seal the cup for holding liquid. The result is a one time use cup that can be shamelessly thrown away after use. After a drink has been poured and enjoyed, the liquid will dissolve sugar coating and start the composting process. As the cup biodegrades the grounds provide valuable nitrogen for the surrounding plants.