A30 Corporate
Liquid Ale yeast from Imperial Yeast.
Lab
Imperial Yeast· Ale · Liquid · A30
Imperial Yeast· Ale · Liquid · A30Specs
Attenuation
73–77%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
16–23°C
61–73°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.
Potential substitutes for A30 Corporate
Common questions
- What is A30 Corporate's attenuation?
- 73–77% apparent attenuation.
- What temperature should I ferment A30 Corporate at?
- 16–23°C is the recommended range.
- What can I substitute for A30 Corporate?
- SafAle US-05 (same flocculation, similar temperature range), WLP001 California Ale Yeast (similar attenuation, same flocculation), and 1056 American Ale (similar attenuation, similar temperature range).
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