Alcohol by volume 4 - 8% Original Gravity 1.043 - 1.077 ABV range 4% – 8% Color Brown, Dark reddish-brown | Yeast type Top-fermenting Bitterness (IBU) 15 - 25 Final Gravity 1.012 - 1.016 IBU range 20 – 25 Glassware Snifter, Flute, Tulip | |
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Commercial examples Liefmans Goudenband, Liefmans Oud Bruin, Riva Vondel, Bavik-De Brabandere Petrus Oud Bruin |
Homebrewing an oud bruin
Oud Bruin (Old Brown), also known as Flanders Brown, is a style of beer originating from the Flemish region of Belgium. The Dutch name refers to the long aging process, up to a year. It undergoes a secondary fermentation, which takes several weeks to a month, and is followed by bottle aging for several more months. The extended aging allows residual yeast and bacteria to develop a sour flavor characteristic for this style. Usually, cultured yeast and bacterias are used, as stainless does not harbor wild organisms as wood does.
Contents
- Homebrewing an oud bruin
- Grand teton brewing oud bruin belgian style ale
- History
- Characteristics
- Examples
- References

Grand teton brewing oud bruin belgian style ale
History
These beers were kept as so called provision beers, to be stored and allow the flavor to develop. Liefmans Brewery has been brewing the style since the 17th century. Historical examples tended to be more sour than modern commercial products.
Characteristics

This style of beer is medium bodied, reddish-brown, and has a gentle malty flavor and no hop bitterness. Commercial versions may mix aged beer with younger, sweeter beer to temper the acidity and allow for further fermentation.
Examples

