OYL-039 Biere de Garde
Liquid Ale yeast from Omega Yeast.
Lab
Omega Yeast· Ale · Liquid · OYL-039
Omega Yeast· Ale · Liquid · OYL-039Specs
Attenuation
74–79%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
21–29°C
70–84°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
≈9% 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+
Finishes bone-dry
Carries the STA1 (diastaticus) gene, so it keeps eating sugars other yeast leave behind and finishes very dry. It's also a contamination risk: it can over-carbonate or gush if it crosses into other beers.
Same strain, other labs
Usually used in
AlesFarmhouseBière de Garde & Saison
Common questions
- What is the OYL-039 Biere de Garde equivalent?
- Spooky Saison and 3725-PC Bière de Garde — the same strain from other labs, the Bière de Garde (3725) strain.
- What is OYL-039 Biere de Garde's attenuation?
- 74–79% apparent attenuation.
- What temperature should I ferment OYL-039 Biere de Garde at?
- 21–29°C is the recommended range.
- Does OYL-039 Biere de Garde produce phenolics (clove and spice)?
- Yes. OYL-039 Biere de Garde is POF-positive — it makes 4-vinyl-guaiacol, the clove and spice character of hefeweizens, witbiers, and saisons.
- Is OYL-039 Biere de Garde diastatic (STA-1)?
- Yes. OYL-039 Biere de Garde carries the STA1 gene (S. cerevisiae var. diastaticus). It super-attenuates to a dry finish, and can over-carbonate or gush if it cross-contaminates other beers.
- What beer styles is OYL-039 Biere de Garde good for?
- Ales, Farmhouse, and Bière de Garde & Saison.
Brew with OYL-039 Biere de Garde
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