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WLP590 French Saison Ale Yeast

Liquid Ale yeast from White Labs.

LabWhite Labs· Ale · Liquid · WLP590

Specs

Attenuation
73–80%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
21–24°C
70–75°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
Medium
How readily the yeast clumps together and drops clear once fermentation winds down.

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.

Potential substitutes for WLP590 French Saison Ale Yeast

Usually used in

Saison

Standard for these styles

Styles where WLP590 French Saison Ale Yeast is a standard pick — from the corpus, not the guidelines.

Common questions

What is WLP590 French Saison Ale Yeast's attenuation?
73–80% apparent attenuation.
What temperature should I ferment WLP590 French Saison Ale Yeast at?
21–24°C is the recommended range.
Does WLP590 French Saison Ale Yeast produce phenolics (clove and spice)?
Yes. WLP590 French Saison Ale Yeast is POF-positive — it makes 4-vinyl-guaiacol, the clove and spice character of hefeweizens, witbiers, and saisons.
Is WLP590 French Saison Ale Yeast diastatic (STA-1)?
Yes. WLP590 French Saison Ale Yeast 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 WLP590 French Saison Ale Yeast good for?
Saison.
What can I substitute for WLP590 French Saison Ale Yeast?
LalBrew Abbaye (similar attenuation, similar temperature range), 3711 French Saison (similar attenuation, similar temperature range), and B64 Napoleon (similar attenuation, similar temperature range).
Brew with WLP590 French Saison Ale Yeast
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