Oud bruin

A sour beer from County of Flanders.

Oud bruin
Photo: Dirk Van Esbroeck,CC BY-SA 3.0, via Wikimedia Commons

Oud Bruin is a Belgian sour ale originating from the County of Flanders. It is made with Pilsner malt and a small amount of black or roasted malt, with an alcohol content of 4.0-8.0%.

How it is made

Oud Bruin is characterized by long aging without oak barrels and blending of aged and young batches. It is made with Pilsner malt and a small amount of black or roasted malt. The fermentation process involves Saccharomyces and Lactobacillus yeast cultures and acetic acid bacteria to achieve the final flavor.

History

Flanders Brown Ale, also known as Oud Bruin, emerged in East Flanders in the 17th century. A typical example is the production from the Liefman brewery.

Types and styles

Oud Bruin ranges from reddish-brown to brown in color. It has a malty taste with fruit flavors and caramel notes. The aroma is rich and fruity with hints of raisin, prunes, figs, dates, black cherry, and plum.

Adapted from the Russian Wikipedia article Фландрийский коричневый эль, available under CC BY-SA 4.0.