OYL-023 Grand Cru
Liquid Ale yeast from Omega Yeast.
Lab
Omega Yeast· Ale · Liquid · OYL-023
Omega Yeast· Ale · Liquid · OYL-023Specs
Attenuation
72–76%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
17–24°C
63–75°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
Low
How readily the yeast clumps together and drops clear once fermentation winds down.
Alcohol tolerance
≈12% ABV
The rough ABV ceiling where the yeast stresses out and stops fermenting.
Genetic traits
Phenolics
POF+
Clove & spice
Throws phenolics — the clove and spice notes (4-vinyl-guaiacol) behind hefeweizens, witbiers, and saisons. Expect a spicy character, not a clean one.
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
Usually used in
Ales
Common questions
- What is the OYL-023 Grand Cru equivalent?
- 3463-PC Forbidden Fruit — the same strain from another lab, the Hoegaarden (Forbidden Fruit 3463) strain.
- What is OYL-023 Grand Cru's attenuation?
- 72–76% apparent attenuation.
- What temperature should I ferment OYL-023 Grand Cru at?
- 17–24°C is the recommended range.
- Does OYL-023 Grand Cru produce phenolics (clove and spice)?
- Yes. OYL-023 Grand Cru is POF-positive — it makes 4-vinyl-guaiacol, the clove and spice character of hefeweizens, witbiers, and saisons.
- What beer styles is OYL-023 Grand Cru good for?
- Ales.
Brew with OYL-023 Grand Cru
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