The goodness of beer.
...Coors Brewing Co. and Aurora-based Merrick & Company are using beer waste to process 1.5 million gallons of the gasoline substitute called ethanol. The ethanol - made in much the same way as moonshine - is sold under a contract with Valero Energy Corp., which distributes the fuel to Diamond Shamrock stations across the Front Range.
Treehugger :: Coors To Turn Brewery Waste into Vehicle Fuel