Fermentis SafLager™ W-34/70 Dry Lager Yeast

Item Number: 24-2355

Sale price$7.99
In stockEligible for Fast & Free Delivery


German, Lagers
SafLager™ W-34/70 Fermentis


Species : Lager
Fermentation Temp Range (°F) : 53-59
Apparent Attenuation Range (%) : n/a
Flocculation : High
Alcohol Tolerance : Medium

Pitching/Fermentation : Sprinkle the yeast in minimum 10 times its weight of sterile water or wort at 21 to 25 °C (70°F to 77°F). Leave to rest 15 to 30 minutes. Gently stir for 30 minutes, and pitch the resultant cream into the fermentation vessel. Alternatively, pitch the yeast directly in the fermentation vessel providing the temperature of the wort is above 20°C (68°F). Progressively sprinkle the dry yeast into the wort ensuring the yeast covers all the surface of wort available in order to avoid clumps. Leave for 30 minutes, then mix the wort using aeration or by wort addition.

Notes : This famous yeast strain from Weihenstephan in Germany is used world-wide within the brewing industry. SafLager W-34/70 allows to brew
beers with a good balance of floral and fruity aromas and gives clean flavors and high drinkable beers

Best Styles : German, Lagers

Looking for a Liquid or Dry Yeast Substitution? The brewers at Austin Homebrew Supply have tried most of them. The following are some suggestions that have worked for us.
Liquid Yeast Substitution : White Labs 830, WL 2124
Dry Yeast Substitution : Diamond

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Customer Reviews

Based on 5 reviews
An excellent yeast for clean lagers

Reputed to be the Weienstephan lager strain, thus one of the oldest lager strains, this yeast works well as a lager yeast, and is probably the best candidate for fermenting lagers at the top end of the lager yeast temperature range. (see Brülosophy tests citing this.) This dry yeast does well out of the package, though for 5 gallon lagers, (@ lager temperatures) safer to grow a starter or use 2 packages. At low ale temperatures, 1 package may do. Best results after fermentation & carbonation, if lager in refrigerator 1-2 months in the bottle.

Louis Richard Harris
Great workhorse yeast

This yeast is a workhorse for many German lagers or American lagers as well. Dry yeast has come a long way in the last few years. I keep several on hand in the brewery fridge for emergencies. We recently lost our LHBS so I've decided to use dry yeast explicitly. It ships well and stores well. This yeast gives me the flavor profile I'm looking for in many German lagers.


This was my first lager, so I wasn't sure what to expect. I did control temperature per instructions and it performed perfectly.

Steve W.
First time user

I recently brewed a Maibock and fermented it with 2 packets of this yeast at room temperature under 14 psi. The fermentation began at about 6 hours, was very robust within 12 hours, and finished in about 5 days. I did not detect any off flavors and will definitely use this yeast again.

Lance Goodrich
Two packages for 5 gallons

Good yeast, fast acting pitched directly into wort. Be advised the 34/70 variety requires 2 packages for 5 gallons, unlike S-23 which uses only one.

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