Anheuser-Busch produces about 125,000,000 barrels of beer a year. Beer production can produce beer waste made up of used grains. Thankfully Anheuser-Busch has teamed up with Blue Marble Bio with plans to set up bio-refineries at their breweries that will use naturally occurring bacteria to break down the grains. The bio gas from this process can be used to create electricity and products like nylon, soap, food additives, and floor polish.
Beer makers use about 400 million tons of grain in their production and though some breweries give used grains away to be used as animal feed and compost but an estimated 92 percent of beer byproducts still go to waste.