OYL-011 British Ale I
Liquid Ale yeast from Omega Yeast.
Lab
Omega Yeast· Ale · Liquid · OYL-011
Omega Yeast· Ale · Liquid · OYL-011Specs
Attenuation
71–75%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
18–23°C
64–73°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
High
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-011 British Ale I
Usually used in
AleBritish AlesIPA & Hazy IPA
Common questions
- What is the OYL-011 British Ale I equivalent?
- Foggy London Ale, A38 Juice, and 1318 London Ale III — the same strain from other labs, the London Ale III (1318) strain.
- What is OYL-011 British Ale I's attenuation?
- 71–75% apparent attenuation.
- What temperature should I ferment OYL-011 British Ale I at?
- 18–23°C is the recommended range.
- What beer styles is OYL-011 British Ale I good for?
- Ale, British Ales, and IPA & Hazy IPA.
- What can I substitute for OYL-011 British Ale I?
- LalBrew Verdant IPA (similar temperature range), M66 Hophead Ale Yeast (similar attenuation, same flocculation), and WLP066 London Fog Ale Yeast (similar attenuation, similar temperature range).
Brew with OYL-011 British Ale I
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