Medium to medium-high with a slightly sweet rich complex malt character and may include aromas and flavors of crystal malt, bread/toast, caramel/caramel malts, chocolate.
Reading guide · The complete guideline attributes below preserve the source’s qualifications.
Color · SRM
15–40
03610162440100+
Pale / strawBlack
Reddish Brown to black · Illustrative colors on the shared, uneven SRM scale.
Reference scale, not a limit on official guideline values.
Bitterness · IBU
18–35
0306090120+
Measured bitterness; perceived bitterness is described in the guideline below.
Brewers Association 2026 · Printed guideline page 35 · PDF page 44. Color graphics are illustrative.
The guideline, in detail
Official style attributes, including what may be present and what should be absent.
Malt aroma & flavor
Medium to medium-high with a slightly sweet rich complex malt character and may include aromas and flavors of crystal malt, bread/toast, caramel/caramel malts, chocolate. Light roast malt character may be present at moderate levels but should not dominate.
Hop aroma & flavor
Very low to low with attributes of noble-type hops.
Perceived bitterness
Low to medium-high
Body & mouthfeel
Medium to medium-high
Clarity
Appearance should be clear. Chill haze should not be present.
Color
Reddish Brown to black
Fermentation characteristics
Esters are usually not present, but if present should be extremely low, at the limit of perception. Diacetyl may be allowable at low levels
Additional guideline notes & competition context
The upper limit of original gravity of versions brewed in Czech Republic is 14.99 °Plato or 1.060 specific gravity. Very low levels of diacetyl, if present, are acceptable and may accent malt character. Low levels of sulfur compounds may be present. DMS and acetaldehyde should not be present. Many versions may exhibit flavor contributions typical of decoction mashing.
Technical specifications, including gravity
Original Gravity (°Plato) 1.044-1.060 (11-14.99 °Plato) • Apparent Extract/Final Gravity (°Plato) 1.013-1.017 (3.3-4.3 °Plato) • Alcohol by Weight (Volume) 3.4%-4.6% (4.4%-5.8%) • Hop Bitterness (IBU) 18-35 • Color SRM (EBC) 15-40 (30-78 EBC)
Keep exploring
Other styles in this guideline group. Similar placement doesn’t guarantee a similar flavor.