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LalBrew Belle Saison

Dry Ale yeast from Lallemand.

LabLallemand· Ale · Dry · WLDBELLESAISON

Specs

Attenuation
86–94%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
15–35°C
59–95°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
≈15% 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

Belle Saison / French Saison (3711)
WLDBELLESAISON = B64 = M29 = OYL-026 = WLP545 = 3711

Potential substitutes for LalBrew Belle Saison

Usually used in

Saison

Common questions

What is the LalBrew Belle Saison equivalent?
B64 Napoleon, M29 French Saison Yeast, OYL-026 French Saison, WLP545 Belgian Strong Ale Yeast, and 3711 French Saison — the same strain from other labs, the Belle Saison / French Saison (3711) strain.
What is LalBrew Belle Saison's attenuation?
86–94% apparent attenuation.
What temperature should I ferment LalBrew Belle Saison at?
15–35°C is the recommended range.
Does LalBrew Belle Saison produce phenolics (clove and spice)?
Yes. LalBrew Belle Saison is POF-positive — it makes 4-vinyl-guaiacol, the clove and spice character of hefeweizens, witbiers, and saisons.
Is LalBrew Belle Saison diastatic (STA-1)?
Yes. LalBrew Belle Saison 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 LalBrew Belle Saison good for?
Saison.
What can I substitute for LalBrew Belle Saison?
SafAle BE-134 and M41 Belgian Ale Yeast.
Brew with LalBrew Belle Saison
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