SafLager W-34/70 German Lager Dry Yeast

Regular price $7.39
SafLager W-34/70 is one of the world's most trusted dry lager yeast strains, producing exceptionally clean, balanced lagers with reliable attenuation and excellent fermentation performance. Originating from the renowned Weihenstephan brewing tradition, it is ideal for brewing a wide range of classic and modern lager styles.
  • Produces clean, crisp lager character
  • Reliable attenuation with restrained ester production
  • 11.5g packet ferments approximately 5–8 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

SafLager W-34/70 is a clean-fermenting lager yeast that produces balanced malt character with restrained ester production and excellent attenuation. Its reliable performance makes it one of the most widely used strains for brewing traditional and modern lager styles.

High flocculation promotes improved clarity while maintaining a smooth, crisp finish. The strain performs consistently throughout its recommended fermentation range, producing clean, true-to-style lagers with subtle floral and delicate fruity notes.

  • Oktoberfest
  • Märzen
  • Vienna Lager
  • Baltic Porter
  • Doppelbock
  • Amber Lager
  • Dark Lager
  • German Pilsner
  • Helles Lager
  • Export Lager

Yeast Format: Dry

Yeast Style: Lager

Flocculation: High

Attenuation: 80–84%

Total Esters: Low

Fermentation Temperature Range: 53.6–64.4°F (12–18°C)

Style Applications: Oktoberfest, Märzen, Vienna Lager, Baltic Porter, Doppelbock, Amber Lager, Dark Lager

  • Maintain fermentation between 53.6–64.4°F (12–18°C) for the cleanest lager profile.
  • Proper oxygenation supports healthy fermentation and reliable attenuation.
  • Allow adequate lagering time for optimal clarity and smooth flavor development.
  • Works well across both traditional German and modern craft lager recipes.
  • Stable fermentation temperatures help preserve clean malt character and restrained esters.

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SafLager W-34/70 German Lager Dry Yeast
From $7.39

Frequently Asked Questions

SafLager W-34/70 is ideal for brewing Oktoberfest, Märzen, Vienna Lager, Baltic Porter, Doppelbock, Amber Lager, Dark Lager, and many other clean, traditional lager styles.

The recommended fermentation temperature range is 53.6–64.4°F (12–18°C).


One 11.5g packet is suitable for fermenting approximately 5–8 gallons of beer, depending on wort gravity and brewing practices.

Yes. SafLager W-34/70 is known for producing clean, crisp lagers with restrained ester production, allowing malt and hop character to shine.

Yes. SafLager W-34/70 is a dry lager yeast that is pitched according to the manufacturer's recommendations.

SafLager W-34/70 is widely used because it delivers reliable fermentation, excellent attenuation, clean flavor development, and consistent results across a broad range of lager styles.


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