The Alaskan Brewing Company is now operating with a new fuel source: beer. More specifically, they are using the wet grain known as “spent grain,”  left over from the brewing process, as the sole fuel source for their steam boiler. Alaskan is the first craft brewery in the world to use this brewing by-product in this way, reducing the company’s fuel oil consumption in brewhouse operations by 60-70 percent. “We have the unique honor of brewing craft beer…