Kölsch

BJCP 5b

Overall Impression
A clean, crisp, delicately-balanced beer usually with a very subtle fruit and hop character. Subdued maltiness throughout leads into a pleasantly well-attenuated and refreshing finish. Freshness makes a huge difference with this beer, as the delicate character can fade quickly with age. Brilliant clarity is characteristic.
Comments

Characterized in Germany as a top-fermented, lagered beer. Each Köln brewery produces a beer of different character, and each interprets the Kölsch Konvention slightly differently. Allow for a range of variation within the style when judging. Note that drier versions may seem hoppier or more bitter than the IBU specifications might suggest. Due to its delicate flavor profile, Kölsch tends to have a relatively short shelf-life; older examples and imports can easily show some oxidation defects. Served in Köln in a tall, narrow 200ml glass called a Stange.

History
Cologne, Germany (Köln) has a top-fermenting brewing tradition since the Middle Ages, but developed the beer now known as Kölsch in the late 1800s to combat encroaching bottom-fermented pale lagers. Kölsch is an appellation protected by the Kölsch Konvention (1986), and is restricted to the 20 or so breweries in and around Köln. The Konvention simply defines the beer as a “light, highly attenuated, hop-accentuated, clear, top-fermenting Vollbier.”
Ingredients
Traditional German hops (Hallertau, Tettnang, Spalt or Hersbrucker). German Pils or pale malt. Attenuative, clean ale yeast. Up to 20% wheat malt may be used, but this is quite rare in authentic versions. Current commercial practice is to ferment warm, cold condition for a short period of time, and serve young.
Commercial Examples
Früh Kölsch, Gaffel Kölsch, Mühlen Kölsch, Reissdorf Kölsch, Sion Kölsch, Sünner Kölsch