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BJCP 2008 Guideline

Sour Ale - Flanders Brown Ale/Oud Bruin


BJCP 2008 17C Flanders Brown Ale/Oud Bruin style example
17C - Sour Ale / Flanders Brown Ale/Oud Bruin



A malty, fruity, aged, somewhat sour Belgian-style brown ale.


Long aging and blending of young and aged beer may occur, adding smoothness and complexity and balancing any harsh, sour character. A deeper malt character distinguishes these beers from Flanders red ales. This style was designed to lay down so examples with a moderate aged character are considered superior to younger examples. As in fruit lambics, Oud Bruin can be used as a base for fruit-flavored beers such as kriek (cherries) or frambozen (raspberries), though these should be entered in the classic-style fruit beer category. The Oud Bruin is less acetic and maltier than a Flanders Red, and the fruity flavors are more malt-oriented.


Liefman's Goudenband, Liefman's Odnar, Liefman's Oud Bruin, Ichtegem Old Brown, Riva Vondel

You can view the complete style details on the BJCP website. The 2008 style guide is obsolete but there is a similar 2015 style that you can view below...

View Style on BJCP Website


OG: 1.040-1.074
FG: 1.008-1.012
IBU: 20-25
SRM: 15.0-22.0
ABV: 4.0-8.0%

BJCP 2008 17C Flanders Brown Ale/Oud Bruin style example