SafAle K-97 vs LalBrew Köln: which to use
SafAle K-97: Fermentis · LalBrew Köln: LallemandThe two strains side by side on the numbers that decide it, and which to reach for.
Gauge readout
Attenuation80 to 84 %
Alcohol tolerance9 to 11 % ABV
Fermentation temp18 to 26 C (64 to 79 F)
Attenuation50%75%100%
Alcohol010%20% ABV
Temperature02040 C
Published data side by side
| Manufacturer | SafAle K-97: Fermentis · LalBrew Köln: Lallemand |
|---|---|
| SafAle K-97 temperature | 18 to 26 C (64 to 79 F) |
| LalBrew Köln temperature | 15 to 25 C (59 to 77 F) |
| SafAle K-97 attenuation | 80 to 84 % |
| LalBrew Köln attenuation | 78 to 83 % |
| SafAle K-97 alcohol tolerance | 9 to 11 % ABV |
| LalBrew Köln alcohol tolerance | 9 % ABV |
| SafAle K-97 flocculation | Slow sedimentation |
| LalBrew Köln flocculation | Medium |
Notes
Both are dry Kölsch strains, but K-97 builds a famously large firm krausen and drops slowly, while Köln is a more straightforward ferment.
Choose K-97 for a traditional Kölsch, accepting the big head and slow drop.
Choose Köln for the same clean delicate result with an easier ferment.
The strains in full
Sources: Fermentis SafAle K-97 product page · Lallemand LalBrew Köln Technical Data Sheet