Flemish Red is a very particular kind of beer. It is known under many different names: sour beer, redbrown ale, Flanders Red, Oldbrown, Oudbruin ... All of these names refer to one and the same beer: a sour beer with a red brownish color that is brewed in the Southwest of Flanders. Its Flemish name ‘Oudbruin’ is even a protected trademark, it can only be used by brewers who brew their beer in a very restricted area between the towns of Kortrijk, Oudenaarde and Tielt.
After the brewing process, this beer is left to mature in large oaken casks. Before bottling, the brewer blends the older beer (+/- 2 years) with the younger beer (6 months) to get his final product. There are roughly three subtypes in this beer: beers with mainly young beer will have a light and sour flavour, beers with mainly older beer will have a richer and fuller flavour, and finally the beers with added fruits will have a sweeter, fruitier flavor.
The most famous brewery of sour ale, and the one that launched this beer more than 100 years ago, is Rodenbach. They have wide variety of Flemish Red beers like Rodenbach Grand Cru, Rodenbach Vintage and Caractere Rouge. Other well-known beers are amongst others Duchesse de Bourgogne, Liefmans Goudenband and Petrus Oud Bruin.