Sour

Oud Bruin

BJCP 23C

The East Flanders brown: maltier and less acetic than a Flanders red, with raisin and caramel sitting under a restrained lactic sourness developed over months in stainless rather than oak.

Vital statistics

Each bar is drawn against the full range of all 98 styles

Original gravity

1.040 - 1.074

Final gravity

1.008 - 1.012

Bitterness

20 IBU - 25 IBU

Colour

15 SRM - 22 SRM

Alcohol

4% - 8%

Colour also 30-43 EBC

What goes wrong

Expecting a Flanders red. This one is malt-first and only moderately sour, and pushing the acidity turns it into a different beer.

Commercial examples

Ichtegem Oud BruinLiefmans GoudenbandLiefmans Oud BruinPetrus Oud BruinVanderghinste Bellegems Bruin

Reference examples of the style, as listed in the BJCP 2021 Style Guidelines. Availability varies by market and year.

Vital statistics as published in the BJCP 2021 Style Guidelines. Not yet checked against the published guidelines: treat these ranges as a planning aid and read the source at bjcp.org before entering a competition.

The rest of the sour family

23A

Berliner Weisse

2.8-3.8% · 3-8 IBU

23B

Flanders Red Ale

4.6-6.5% · 10-25 IBU

23D

Lambic

5-6.5% · 0-10 IBU

23E

Gueuze