Published: February 13, 2011
In this Jan. 26, 2011 photo, Eric Fitch holds a Magic Hat glass in front of the digester building at the brewery in South Burlington, Vt. The Vermont brewery is giving new meaning to the idea of green beer. Magic Hat Brewing Co., of South Burlington, is the first site to use a device that turns spent grain from the brewing process into natural gas that is then used to fuel brewing operations. The 42-foot tall anaerobic methane digester, installed last summer, extracts energy from the spent hops, barley and yeast left over from the brewing process.