Used tealeaves are good for more than fortune telling, particularly at the Coca-Cola Central Japan (CCCJ) plant in Tokai. The company installed the eKOsystem, a methane fermentation processing unit, in the CCCJ Group's facility so it could make energy from the coffee grounds and used tealeaves generated during the beverage manufacturing process. Coffee grounds and used tealeaves account for 80 percent of the waste generated by plants.

As a system for recycling coffee grounds and used tealeaves into energy, CCCJ's methane fermentation processing equipment is a first for Japan's soft-drink industry, according to the company's press release.