Wyeast 1084 Irish Ale yeast vs Wyeast 1272 American Ale II yeast: specs compared
Updated 05 September 2026.
3
specs differ
Wyeast 1084 Irish Ale yeast and Wyeast 1272 American Ale II yeast differ on 3 specs: fermentation temperature, apparent attenuation, flocculation.
| Spec | Wyeast 1084 Irish Ale yeast | Wyeast 1272 American Ale II yeast |
|---|---|---|
| Manufacturer | Wyeast (liquid) | Wyeast (liquid) |
| Species | Saccharomyces cerevisiae, top-fermenting ale | Saccharomyces cerevisiae, top-fermenting ale |
| Fermentation temperature | 17 to 22 C (62 to 72 F) | 16 to 22 C (60 to 72 F) |
| Apparent attenuation | 71 to 75 % (73% typical) | 72 to 76 % (74% typical) |
| Alcohol tolerance | 10 % tolerance | 10 % tolerance |
| Flocculation | Medium | High |
Questions and answers
How do Wyeast 1084 Irish Ale yeast and Wyeast 1272 American Ale II yeast compare?
Wyeast 1084 Irish Ale yeast and Wyeast 1272 American Ale II yeast differ on 3 specs: fermentation temperature, apparent attenuation, flocculation.