SafAle BW-20
Dry Wheat yeast from Fermentis.
Lab
Fermentis· Wheat · Dry · BW-20
Specs
Attenuation
77–83%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
18–26°C
64–79°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.
Common questions
- What is SafAle BW-20's attenuation?
- 77–83% apparent attenuation.
- What temperature should I ferment SafAle BW-20 at?
- 18–26°C is the recommended range.
- Does SafAle BW-20 produce phenolics (clove and spice)?
- Yes. SafAle BW-20 is POF-positive — it makes 4-vinyl-guaiacol, the clove and spice character of hefeweizens, witbiers, and saisons.
Brew with SafAle BW-20
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