Belgian and French Origin Ale Styles

Belgian-Style Flanders Oud Bruin or Oud Red Ale

Ale · Copper to very dark. SRM/EBC color values can be misleading because the red spectrum of color is not accurately assessed by these measurement systems.

What to expect

Roasted malt aromas and flavors including cocoa are acceptable at low levels.

Reading guide · The complete guideline attributes below preserve the source’s qualifications.

Color · SRM

12–25

Pale / strawBlack

Copper to very dark. SRM/EBC color values can be misleading because the red spectrum of color is not accurately assessed by these measurement systems. · Illustrative colors on the shared, uneven SRM scale.

Explore styles overlapping this color range

Alcohol · ABV

4.8–6.6%

Reference scale, not a limit on official guideline values.

Bitterness · IBU

5–18

Measured bitterness; perceived bitterness is described in the guideline below.

Brewers Association 2026 · Printed guideline page 27 · PDF page 36. Color graphics are illustrative.

The guideline, in detail

Official style attributes, including what may be present and what should be absent.

Malt aroma & flavor

Roasted malt aromas and flavors including cocoa are acceptable at low levels. Biscuit and light caramel aromas and flavors are typical. A low to medium level of malt sweetness is often present and should be balanced by acidity from Lactobacillus.

Hop aroma & flavor

Not present

Perceived bitterness

Very low to medium-low, though acidity and wood-aging (if used) may mask higher bitterness levels.

Body & mouthfeel

Low to medium-low with a refreshing mouthfeel

Clarity

Chill haze is acceptable at low temperatures. Bottle conditioned versions may appear cloudy when served.

Color

Copper to very dark. SRM/EBC color values can be misleading because the red spectrum of color is not accurately assessed by these measurement systems.

Fermentation characteristics

Brettanomyces-produced aromas and flavors should be present in Oud Reds and may be present in Oud Bruins. Fruity esters expressed as cherry or green apple attributes are apparent. Very slight levels of ethyl acetate (red apple) may be present. Overall flavor of Oud Bruin is fundamentally characterized by medium low to high lactic sourness. Many versions express very low to medium acetic sourness and aroma; acetic sourness may also be absent.

Additional guideline notes & competition context

These beers showcase a pleasant, complex, vinous character and refreshing acidity. Oaky or woody flavors may be pleasantly integrated. Flavors of wine or distilled spirits associated with used barrels should not be present. These beers are often a blend of old and young beer to create the brewer’s intended flavor balance.

Technical specifications, including gravity

Original Gravity (°Plato) 1.044-1.056 (11-13.8 °Plato) • Apparent Extract/Final Gravity (°Plato) 1.008- 1.016 (2.1-4.1 °Plato) • Alcohol by Weight (Volume) 3.8%-5.2% (4.8%-6.6%) • Hop Bitterness (IBU) 5-18 • Color SRM (EBC) 12-25 (24-50 EBC)

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