Reference scale, not a limit on official guideline values.
Bitterness · IBU
18–25
0306090120+
Measured bitterness; perceived bitterness is described in the guideline below.
Brewers Association 2026 · Printed guideline page 38 · PDF page 47. Color graphics are illustrative.
The guideline, in detail
Official style attributes, including what may be present and what should be absent.
Malt aroma & flavor
Sweet toasted malt aroma should be present. Medium-low to medium toasted malt sweetness should be present. Aroma and flavor of smoked beechwood ranges from very low to medium. Smoke flavors should be smooth, without harshness. Aroma should strike a balance between malt, hop, and smoke.
Hop aroma & flavor
Hop aroma and flavor is very low to low, derived from noble-type hops.
Perceived bitterness
Low to medium
Body & mouthfeel
Full
Clarity
Appearance should be clear. Chill haze should not be present
Color
Pale to light brown
Fermentation characteristics
Fruity esters and diacetyl should not be present
Technical specifications, including gravity
Original Gravity (°Plato) 1.050-1.060 (12.4-14.7 °Plato) • Apparent Extract/Final Gravity (°Plato) 1.012-1.020 (3.1-5.1 °Plato) • Alcohol by Weight (Volume) 4.0%-4.7% (5.1%-6.0%) • Hop Bitterness (IBU) 18-25 • Color SRM (EBC) 4-15 (8-30 EBC)
Keep exploring
Other styles in this guideline group. Similar placement doesn’t guarantee a similar flavor.