SafAle K-97 yeast vs SafAle S-33 yeast: specs compared
Updated 05 September 2026.
2
specs differ
SafAle K-97 yeast and SafAle S-33 yeast differ on 2 specs: apparent attenuation, flocculation.
| Spec | SafAle K-97 yeast | SafAle S-33 yeast |
|---|---|---|
| Manufacturer | Fermentis (dry) | Fermentis (dry) |
| Species | Saccharomyces cerevisiae, top-fermenting ale | Saccharomyces cerevisiae, top-fermenting ale |
| Fermentation temperature | 18 to 26 C (64 to 79 F) | 18 to 26 C (64 to 79 F) |
| Apparent attenuation | 80 to 84 % | 68 to 72 % |
| Alcohol tolerance | 9 to 11 % ABV | 9 to 11 % ABV |
| Flocculation | Slow sedimentation | Medium sedimentation |
Questions and answers
How do SafAle K-97 yeast and SafAle S-33 yeast compare?
SafAle K-97 yeast and SafAle S-33 yeast differ on 2 specs: apparent attenuation, flocculation.