Reference scale, not a limit on official guideline values.
Bitterness · IBU
10–35
0306090120+
Measured bitterness; perceived bitterness is described in the guideline below.
Brewers Association 2026 · Printed guideline page 47 · PDF page 56. Color graphics are illustrative.
The guideline, in detail
Official style attributes, including what may be present and what should be absent.
Malt aroma & flavor
Low to medium-low level pale malt attributes are present in paler versions. Medium-low to medium-high malt attributes such as cocoa, chocolate, caramel, toffee, or biscuit may be present in darker versions. Roast malt astringency is acceptable in darker versions when balanced with malt sweetness.
Hop aroma & flavor
Low to high
Perceived bitterness
Low to medium
Body & mouthfeel
Very low to medium
Clarity
Clear to cloudy
Color
Straw to dark brown
Fermentation characteristics
Low to medium fruity esters are present. Diacetyl and phenolic, clove-like attributes should not be present.
Additional guideline notes & competition context
These beers can be fermented with either ale or lager yeast. The grist should include at least 30 percent malted wheat. Versions served with yeast may exhibit somewhat higher perceived bitterness and fuller mouthfeel. If present, yeast character and flavor can range from low to medium, and should be in harmony with malt and hop attributes, and not sharp. When using these guidelines as the basis for evaluating entries at competitions, organizers may wish to further subcategorize this category based on the presence or absence of yeast, use of darker malts, etc.
Technical specifications, including gravity
Original Gravity (°Plato) 1.036-1.056 (9-13.8 °Plato) • Apparent Extract/Final Gravity (°Plato) 1.004- 1.016 (1-4.1 °Plato) • Alcohol by Weight (Volume) 2.8%-4.4% (3.5%-5.6%) • Hop Bitterness (IBU) 10-35 • Color SRM (EBC) 2-10 (4-20 EBC)
Keep exploring
Other styles in this guideline group. Similar placement doesn’t guarantee a similar flavor.
Malt character: Medium-low to medium. Hop character: Low to medium. May exhibit floral or spicy attributes typical of early 20th century North American hop varieties.