Season 18/19 Assemblage #50. Magnum Bottled on 06/03/19. This particular Oude Geuze has been blended with lambics from 4 different barrels and originating from 2 different brews, of which 2 are from 3 Fonteinen. This blend consists of 55% 3 year old lambic and 45% young. The average age of the lambic used is 25 months.