A two hour live recording from Smakselv.no's Sour Rangers concept in Oslo, Norway. Our guest this time is Michael Tonsmeire, author of American Sour Beers, a book which has quickly become a reference for modern sour beer brewers. Enjoy! - Eskild Bergan, Amund Polden Arnesen and Bjørn Harald Færøvik.由Smak Selv