ANGEL YEAST KO DRY KOLSCH YEAST 500G

Kölsch-style ale yeast for clean ales with a lager-like profile

Angel Yeast KO is a Kölsch-style ale yeast developed for producing clean, delicate beers with a lager-like fermentation profile. When fermented at the lower end of its temperature range, KO delivers a very neutral aroma, restrained ester production and a crisp finish, while retaining the flexibility of an ale yeast.

KO is designed for brewers seeking the balance between ale fermentation simplicity and lager-style cleanliness, making it ideal for Kölsch-style beers and other clean ales requiring high drinkability and subtle yeast expression.

Supplied as a 500g dry yeast pack from our Swiss warehouse, KO is available with fast delivery across Switzerland.

Applications

Kölsch

Clean blonde ales

Cream ale

Pseudo-lager styles

Hybrid ales with lager-like character

KO is particularly suited for breweries wanting to produce clean beers without running a full lager fermentation program.

Brew Characteristics

Very clean fermentation profile

Low ester production when fermented cool

Subtle fruity notes at slightly higher temperatures

Moderate attenuation → balanced, crisp finish

Medium flocculation

Excellent drinkability

Suitable for cold conditioning after fermentation

Technical Characteristics

Yeast type: Saccharomyces cerevisiae (Kölsch-style ale yeast)

Fermentation temperature: 14–20°C

Attenuation: Medium

Flocculation: Medium

Alcohol tolerance: Moderate

Aroma profile: clean, subtle, lightly fruity

GMO-free, food-grade dry yeast

Recommended Fermentation Temperature

14–18°C for classic Kölsch and lager-like profiles
Up to 20°C for slightly more ester expression while remaining clean.

Dosage

Standard pitching rate: 50–80 g/hL

Lower temperatures may benefit from the higher end of the range

Rehydrate according to standard dry yeast handling practices.