OYL-044 Kolsch II
Liquid Ale yeast from Omega Yeast.
Lab
Omega Yeast· Ale · Liquid · OYL-044
Omega Yeast· Ale · Liquid · OYL-044Specs
Attenuation
72–78%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
18–21°C
64–70°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
Med-low
How readily the yeast clumps together and drops clear once fermentation winds down.
Alcohol tolerance
≈10% ABV
The rough ABV ceiling where the yeast stresses out and stops fermenting.
Genetic traits
Phenolics
POF−
Ferments clean
Phenolically clean (POF-negative). No clove or spice, so malt, esters, and hops come through unmasked. The norm for American and British ales and most lagers.
Diastatic
STA-1−
Not diastatic
Does not carry the STA1 (diastaticus) gene. It attenuates normally, with no diastaticus over-attenuation or gushing risk.
Same strain, other labs
Potential substitutes for OYL-044 Kolsch II
Usually used in
Ales
Common questions
- What is the OYL-044 Kolsch II equivalent?
- Kolsch Ale, G03 Dieter, and WLP029 German Ale/Kölsch Yeast — the same strain from other labs, the Kölsch (WLP029) strain.
- What is OYL-044 Kolsch II's attenuation?
- 72–78% apparent attenuation.
- What temperature should I ferment OYL-044 Kolsch II at?
- 18–21°C is the recommended range.
- What beer styles is OYL-044 Kolsch II good for?
- Ales.
- What can I substitute for OYL-044 Kolsch II?
- 2124 Bohemian Lager, Isar Lager, L13 Global, and OYL-106 German Lager I.
Brew with OYL-044 Kolsch II
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