SafAle K-97
Dry Ale yeast from Fermentis.
Lab
Fermentis· Ale · Dry · K-97
Fermentis· Ale · Dry · K-97Specs
Attenuation
80–84%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
12–25°C
54–77°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
High
How readily the yeast clumps together and drops clear once fermentation winds down.
Alcohol tolerance
≈11% 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.
Potential substitutes for SafAle K-97
Standard for these styles
Styles where SafAle K-97 is a standard pick — from the corpus, not the guidelines.
Common questions
- What is SafAle K-97's attenuation?
- 80–84% apparent attenuation.
- What temperature should I ferment SafAle K-97 at?
- 12–25°C is the recommended range.
- What can I substitute for SafAle K-97?
- 1007 German Ale (similar temperature range), G02 Kaiser (similar temperature range), and WLP036 Dusseldorf Alt Ale Yeast (similar temperature range).
Brew with SafAle K-97
Build a recipe