The godfather of brewery “Rinkuškiai” can be considered of Jonas Čygas, he was known as one of the best beer maker of Biržai. Jonas Čygas makes barley beer for christenings, weddings, anniversaries and other celebrations. Soviet officials was not ashamed to carry of his brewed beer for highest authorities. Brewing secrets Rimantas teaches from his father. Rimantas Čygas have suggested Sigitas Kalkys to the beer business. Beer was started in Petras Kalkys and Sigitas Kalkys urban-type house, based in Biržai village. Rimantas Čygas brought from his father’s brewing technology, Sigitas Kalkys with University degree in civil engineering, has taken the technical part. Later the building was rebuilt, the owners are buying new equipment and continued to refine the brewery. It is grown to the current brewery Rinkuškiai brewery, the Lithuanian beer market, holding an honorable 5th place.