For all Zoller-Hof beers only the finest aroma and bitter hops from the South of Germany in Hallertau and Tettnang on Lake of Constance are being used, which rank among the highest classified hops available. No hop extract is used in order to meet the highest quality expectations in terms of aroma and bouquet. The philosophy of being in balance with nature and the ambition to minimize the brewery’s carbon foot print is exemplified by the use of fresh water from the brewery’s own well and the 100 % reliance on energy produced by hydro-electric power for its production and bottling operations.