Experiment #3 - Sour Beer (Kombucha) Sour · Brown BIERlab Zürich · Zürich Discover the brewery Characteristics Style Sour Color Brown 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