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1272 American Ale II

Liquid Ale yeast from Wyeast.

LabWyeast· Ale · Liquid · 1272

Specs

Attenuation
72–76%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
16–22°C
61–72°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.
Alcohol tolerance
≈10% 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

American Ale II (1272)
1272 = American Ale = A15 = OYL-009

Potential substitutes for 1272 American Ale II

Usually used in

Blonde AlePale AleIPAStrong AleBrown Ale & Porter

Common questions

What is the 1272 American Ale II equivalent?
American Ale, A15 Independence, and OYL-009 West Coast Ale II — the same strain from other labs, the American Ale II (1272) strain.
What is 1272 American Ale II's attenuation?
72–76% apparent attenuation.
What temperature should I ferment 1272 American Ale II at?
16–22°C is the recommended range.
What beer styles is 1272 American Ale II good for?
Blonde Ale, Pale Ale, IPA, Strong Ale, and Brown Ale & Porter.
What can I substitute for 1272 American Ale II?
LalBrew BRY-97 American West Coast Ale, M44 US West Coast Yeast, WLP019 California IV Ale Yeast, and WLP051 California Ale V Yeast.
Brew with 1272 American Ale II
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