SafAle K-97 German Ale Dry Yeast
SafAle K-97 German Ale Dry Yeast

SafAle K-97 German Ale Dry Yeast

$6.49
SafAle K-97 is a premium German ale yeast selected for producing exceptionally clean, balanced beers with outstanding foam retention. Its restrained ester profile and dependable fermentation make it an excellent choice for Kölsch, German wheat beers, Altbier, and other traditional top-fermented styles.
  • Clean German ale profile with excellent foam stability
  • Ideal for Kölsch, Altbier & German wheat beers
  • 11.5 g packet treats approximately 5 gallons
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Fermentation Temp Range
Each yeast strain has a temperature range where it performs best. Lagers require cooler temps, while Kveik yeasts can ferment in extreme heat. Maintaining the proper fermentation temperature for each yeast strain is crucial its health. Matching a yeast's ideal range to your environment (or your ability to control temp) is key to getting clean, consistent results.
Scale from 30°-120°F

SafAle K-97 delivers a clean, neutral fermentation profile with restrained ester production that allows malt complexity and hop character to remain prominent. Its excellent foam retention and balanced attenuation make it particularly well suited for delicate German ale styles where clean fermentation is essential.

With attenuation between 80–84% and low to medium flocculation, K-97 produces crisp, highly drinkable beers while maintaining the smooth character expected from traditional German brewing strains.

SafAle K-97 performs especially well in:

  • Kölsch
  • German Wheat Beer (Hefeweizen & Dunkelweizen)
  • Altbier
  • Blonde Ale
  • American Wheat
  • Cream Ale

Yeast Format: Dry

Yeast Style: Ale

Flocculation: Low to Medium

Attenuation: 80–84%

Total Esters: Low

Fermentation Temperature Range: Optimal: 59–68°F (15–20°C); Overall Range: 54–77°F (12–25°C)

Style Applications: Kölsch, German Wheat Beer (Hefeweizen, Dunkelweizen), Altbier, Blonde Ale, American Wheat, Cream Ale

  • Ferment between 59–68°F for the cleanest German ale profile.
  • Pitch directly into well-oxygenated wort.
  • Excellent choice for beers requiring long-lasting foam retention.
  • Lower fermentation temperatures help minimize ester production.
  • Ideal for delicate malt-forward German beer styles.

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SafAle K-97 German Ale Dry Yeast
From $6.49

Frequently Asked Questions

SafAle K-97 is recommended for Kölsch, German Wheat Beer (Hefeweizen and Dunkelweizen), Altbier, Blonde Ale, American Wheat, and Cream Ale.

Fermentis recommends an optimal fermentation range of 59–68°F (15–20°C), with an overall operating range of 54–77°F (12–25°C).

SafAle K-97 is known for producing a clean German ale profile with restrained esters and exceptional foam stability, allowing malt and hop character to stand out.

SafAle K-97 has an apparent attenuation range of 80–84%.

No. SafAle K-97 produces a low ester fermentation profile for clean, balanced beers.

One 11.5 g packet is designed to ferment approximately 5 gallons of wort.


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