Reference scale, not a limit on official guideline values.
Bitterness · IBU
25–52
0306090120+
Measured bitterness; perceived bitterness is described in the guideline below.
Brewers Association 2026 · Printed guideline page 18 · PDF page 27. Color graphics are illustrative.
The guideline, in detail
Official style attributes, including what may be present and what should be absent.
Malt aroma & flavor
A variety of malts contribute to medium-low to medium malt aroma and flavor. Toast aroma typical of Munich malts should be present. Slight nuttiness is acceptable. Roast malt character should be present at low levels and well-integrated with the overall malt profile. Smoke character should not be present.
Hop aroma & flavor
Low to medium with hop flavor more perceptible than aroma, with attributes typical of traditional German noble hops.
Perceived bitterness
Medium to high, producing a clean dry finish.
Body & mouthfeel
Medium-low to medium.
Clarity
Clear to slightly hazy. Chill haze should not be present
Color
Copper to dark brown
Fermentation characteristics
Fruity esters are absent to low, with attributes expressed subtly as citrus, pear, dark cherry or plum. A slight sulfur aroma is acceptable. Diacetyl should not be present.
Additional guideline notes & competition context
The Altbier style is originally from the Dusseldorf area. The overall impression is clean, crisp and flavorful with a dry finish.
Technical specifications, including gravity
Original Gravity (°Plato) 1.044-1.052 (11-12.9 °Plato) • Apparent Extract/Final Gravity (°Plato) 1.008- 1.014 (2.1-3.6 °Plato) • Alcohol by Weight (Volume) 3.6%-4.4% (4.6%-5.6%) • Hop Bitterness (IBU) 25-52 • Color SRM (EBC) 11-19 (22-38 EBC)
Keep exploring
Other styles in this guideline group. Similar placement doesn’t guarantee a similar flavor.