2105-PC Rocky Mountain Lager
Liquid Lager yeast from Wyeast.
Lab
Wyeast· Lager · Liquid · 2105-PC
Wyeast· Lager · Liquid · 2105-PCSpecs
Attenuation
70–74%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
9–13°C
48–55°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
≈9% ABV
The rough ABV ceiling where the yeast stresses out and stops fermenting.
Genetic traits
Phenolics
POF−
Ferments clean
Phenolically clean (POF-negative). No clove or spice, so malt, esters, and hops come through unmasked. The norm for American and British ales and most lagers.
Diastatic
STA-1−
Not diastatic
Does not carry the STA1 (diastaticus) gene. It attenuates normally, with no diastaticus over-attenuation or gushing risk.
Same strain, other labs
Usually used in
Lager & German Pils
Common questions
- What is the 2105-PC Rocky Mountain Lager equivalent?
- L26 Pilgrimage and WLP835 German X Lager Yeast — the same strain from other labs, the German X / Bavarian Monastery (WLP835) strain.
- What is 2105-PC Rocky Mountain Lager's attenuation?
- 70–74% apparent attenuation.
- What temperature should I ferment 2105-PC Rocky Mountain Lager at?
- 9–13°C is the recommended range.
- What beer styles is 2105-PC Rocky Mountain Lager good for?
- Lager & German Pils.
Brew with 2105-PC Rocky Mountain Lager
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