Smooth Operator English Bitter · Brown BIERlab Zürich · Zürich Alcohol level4.4 % Discover the brewery Characteristics Style English Bitter Color Brown Alcohol level 4.4 % Region Zürich Beers from this brewery View all Paint It Black BIERlab Stout - Irish Dry Formidable BIERlab Belgian Dubbel High And Dry BIERlab IPA - Brut Interstellar Overdrive BIERlab IPA - New England