SafAle K-97 yeast vs SafLager S-23 yeast: specs compared
Updated 05 September 2026.
3
specs differ
SafAle K-97 yeast and SafLager S-23 yeast differ on 3 specs: species, fermentation temperature, flocculation.
| Spec | SafAle K-97 yeast | SafLager S-23 yeast |
|---|---|---|
| Manufacturer | Fermentis (dry) | Fermentis (dry) |
| Species | Saccharomyces cerevisiae, top-fermenting ale | Saccharomyces pastorianus, bottom-fermenting lager |
| Fermentation temperature | 18 to 26 C (64 to 79 F) | 12 to 18 C (54 to 64 F) |
| Apparent attenuation | 80 to 84 % | 80 to 84 % |
| Alcohol tolerance | 9 to 11 % ABV | 9 to 11 % ABV |
| Flocculation | Slow sedimentation | Fast sedimentation |
Questions and answers
How do SafAle K-97 yeast and SafLager S-23 yeast compare?
SafAle K-97 yeast and SafLager S-23 yeast differ on 3 specs: species, fermentation temperature, flocculation.