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BJCP Category 5B — Pale Commonwealth & Hybrid Beer
4 SRM (Pale Gold)

Kölsch

“The delicate appellation pride of Cologne—hybrid-fermented with warm top ale yeast and extended cold lagering.”

Official BJCP Vital Statistics Range

Original Grav. (OG)1.044–1.050
Final Grav. (FG)1.007–1.011
Bitterness (IBU)18–30
Color (SRM)3.5–5
Alcohol (ABV)4.4–5.2%

Sensory Character & Tasting Notes

•Subtle crisp pear and white grape vinous esters
•Delicate German pilsner malt sweetness
•Crisp, herbal noble hop snap
•Ultra-clean, dry, lager-like refreshingly snappy finish

Origin, Heritage & Craft Tradition

Protected by the Kölsch Konvention of 1986, true Kölsch may only be brewed within 50 km of Cologne, Germany. Served traditionally in tall, cylindrical 200ml glasses called 'Stangen'. It is one of brewing's greatest hybrid styles: fermented with top-fermenting ale yeast at cellar temperatures (59-62°F), followed by 4 to 6 weeks of near-freezing cold conditioning.

Authentic Grain Bill & Mash Schedule

Mash Target
149°F for 75 Minutes
Low single infusion mash for maximum fermentability and bone-dry finish
Representative Grist Ratios:
German Pilsner Malt↗
Delicate straw malt foundation88%
German Vienna or Munich Malt↗
Subtle background malt depth7%
German Wheat Malt↗
Lacing and head retention5%

Recommended Yeast Strains

SafAle K-97 (Fermentis)
Compare ↗
Attenuation: 80-84% • Flocculation: Medium
WLP029 German Ale/Kölsch (White Labs)
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Attenuation: 72-78% • Flocculation: Medium
WY2565 Kölsch (Wyeast)
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Attenuation: 73-77% • Flocculation: Low

Water Profile & Salts

Very soft Cologne water profile. Keep calcium sulfate low, calcium chloride moderate (~60 ppm).

Commercial Reference Benchmarks

Benchmark your homebrew against these commercial archetypes:

Früh KölschReissdorf KölschGaffel KölschSunner Kölsch
Inkbird ITC-308 Dual Relay Digital Temperature Controller
Recommended Hardware Match

Inkbird ITC-308 Dual Relay Digital Temperature Controller

Best Budget Fermentation Temperature Controller — Turn any chest freezer or mini-fridge into a precision fermentation chamber for under $40.

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Brew Day Precision Calculators for Kölsch

All 8 Calculators→

Dial in this recipe with authentic target gravities, bitterness, strike temperatures, and carbonation:

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