Oude Geuze Boon is undoubtedly one of the best-known beers of our brewery. We have been making this traditional, unsweetened and unfiltered Oude Geuze since 1975. It is particularly loved for its gentle flavour and mild tartness. Its secret? Everything starts with the Lambic beer that is brewed from 60% malt and 40% wheat and is then 100% matured in oak barrels. Oude Geuze Boon is a blend of Lambics that have matured for 1, 2 and 3 years. It is bottled and then given another several months of bottle conditioning. This secondary fermentation process creates extra complex flavours with a rich sparkle that produces a nice head when served. The bottle conditioning is also what makes the Lambic blend a genuine Oude Geuze.