A24 Dry Hop
Liquid Blend yeast from Imperial Yeast.
Lab
Imperial Yeast· Blend · Liquid · A24
Imperial Yeast· Blend · Liquid · A24Specs
Attenuation
74–78%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
18–23°C
64–73°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+
Finishes bone-dry
Carries the STA1 (diastaticus) gene, so it keeps eating sugars other yeast leave behind and finishes very dry. It's also a contamination risk: it can over-carbonate or gush if it crosses into other beers.
Usually used in
Hazy IPAAmerican IPAAmerican Pale AleImperial IPAWhite IPARed IPARed AlePale AleEnglish IPABlack IPARobust PorterAmerican StoutWinter Seasonal BeerAmerican Barleywine+5 more
Common questions
- What is A24 Dry Hop's attenuation?
- 74–78% apparent attenuation.
- What temperature should I ferment A24 Dry Hop at?
- 18–23°C is the recommended range.
- Does A24 Dry Hop produce phenolics (clove and spice)?
- No. A24 Dry Hop is POF-negative (phenolically clean), so it won't throw clove or spice.
- Is A24 Dry Hop diastatic (STA-1)?
- Yes. A24 Dry Hop carries the STA1 gene (S. cerevisiae var. diastaticus). It super-attenuates to a dry finish, and can over-carbonate or gush if it cross-contaminates other beers.
- What beer styles is A24 Dry Hop good for?
- Hazy IPA, American IPA, American Pale Ale, Imperial IPA, White IPA, Red IPA, Red Ale, Pale Ale, English IPA, Black IPA, Robust Porter, American Stout, Winter Seasonal Beer, American Barleywine, Imperial Stout, American Strong Ale, Wheatwine, Cream Ale, and American Wheat Beer & Blonde Ale.
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