Aroma: Very low to no Pils malt aroma. A pleasant, subtle fruit aroma from fermentation (apple, cherry or pear) is acceptable, but not always present. A low noble hop aroma is optional but not out of place (it is present only in a small minority of authentic versions). Some yeasts may give a slight winy or sulfury character (this characteristic is also optional, but not a fault).

Appearance: Very pale gold to light gold. Authentic versions are filtered to a brilliant clarity. Has a delicate white head that may not persist.

Flavor: Soft, rounded palate comprising of a delicate flavor balance between soft yet attenuated malt, an almost imperceptible fruity sweetness from fermentation, and a medium-low to medium bitterness with a delicate dryness and slight pucker in the finish (but no harsh aftertaste). The noble hop flavor is variable, and can range from low to moderately high; most are medium-low to medium. One or two examples (Dom being the most prominent) are noticeably malty-sweet up front. Some versions can have a slightly minerally or sulfury water or yeast character that accentuates the dryness and flavor balance. Some versions may have a slight wheat taste, although this is quite rare. Otherwise very clean with no diacetyl or fusels.

Mouthfeel: Smooth and crisp. Medium-light body, although a few versions may be medium. Medium to medium-high carbonation. Generally well-attenuated.

Overall Impression: A clean, crisp, delicately balanced beer usually with very subtle fruit flavors and aromas. Subdued maltiness throughout leads to a pleasantly refreshing tang in the finish. To the untrained taster easily mistaken for a light lager, a somewhat subtle Pilsner, or perhaps a blonde ale.

History: Kölsch is an appellation protected by the Kölsch Konvention, and is restricted to the 20 or so breweries in and around Cologne (Köln). The Konvention simply defines the beer as a “light, highly attenuated, hop-accentuated, clear top-fermenting Vollbier.”

Ingredients: German noble hops (Hallertau, Tettnang, Spalt or Hersbrucker). German Pils or pale malt. Attenuative, clean ale yeast. Up to 20% wheat may be used, but this is quite rare in authentic versions. Water can vary from extremely soft to moderately hard. Traditionally uses a step mash program, although good results can be obtained using a single rest at 149?F. Fermented at cool ale temperatures (59-65?F) and lagered for at least a month, although many Cologne brewers ferment at 70?F and lager for no more than two weeks.