WLP4665 Berkeley Hills Sour Yeast
Liquid Wild yeast from White Labs.
Lab
White Labs· Wild · Liquid · WLP4665
White Labs· Wild · Liquid · WLP4665Specs
Attenuation
62–75%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
18–21°C
64–70°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
Med-high
How readily the yeast clumps together and drops clear once fermentation winds down.
Alcohol tolerance
≈10% ABV
The rough ABV ceiling where the yeast stresses out and stops fermenting.
Common questions
- What is WLP4665 Berkeley Hills Sour Yeast's attenuation?
- 62–75% apparent attenuation.
- What temperature should I ferment WLP4665 Berkeley Hills Sour Yeast at?
- 18–21°C is the recommended range.
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