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Fermentis | SafLager™ W-34/70 Bohemian Lager | Dry Beer Yeast

Fermentis | SafLager™ W-34/70 Bohemian Lager | Dry Beer Yeast

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Description
  • W-34/70 is a robust lager yeast, ideal for neutral beers with a good balance of floral and fruity aromas
  • This is the famous brewer’s yeast strain from Weihenstephan in Germany that is used world-wide within the brewing industry
  • Fermentis active dry yeast offers reliability, ease-of-use, and consistency to home and professional beverage makers across the world

The famous "Weihenstephan" yeast from Germany. W-34/70 is a widely used yeast strain that gives beer a clean finish and lets the malt really come through. Give this yeast a try and you might just have a new favorite!

This yeast can be pitched directly, but if you prefer to rehydrate, the instructions are below.

Sprinkle the yeast in a minimum of 10 times its weight of sterile water or wort (we suggest 4 oz) at 70°F to 77°F (21 to 25 °C). Do not stir. Leave to rest 15 to 30 minutes. Gently stir for 30 minutes, and pitch the resultant cream into the fermentation vessel.

  • Attenuation: 80-84%
  • Sedimentation Time: Fast
  • Alcohol Tolerance: 9-11% ABV
  • Optimum Fermentation Temp: 54-64°F

Like Fermentis Saflager W-34/70 Bohemian Lage Yeast? Then you will love CellarScience® GERMAN Dry Lager Yeast!

 

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Community Q&A
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Why did you choose this?
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To brew a pilsner
Shawn L on Mar 6, 2023
Cold IPA recipe
Hayden C on Feb 7, 2023
To brew a pilsner
Shawn L on Mar 6, 2023
My go-to lager yeast. Ferments at ale temps with NO off-flavors.
Dennis S on Feb 25, 2023
Cold IPA recipe
Hayden C on Feb 7, 2023
Ferments at higher temps than other lager yeasts
Mike R on Jan 26, 2023
My go to Lager strain
Christopher B on Jan 26, 2023
I like alcohol
Jeff M on Jan 25, 2023
recipe
Scott B on Jan 25, 2023
Great quick lager yeast!
Joel F. on Jan 6, 2023
spare
Andy M on Jan 3, 2023
Trying something new
Valued C on Dec 31, 2022
Pilsner
Benjamin on Dec 16, 2022
great lager yeast.
Jay H on Dec 1, 2022
Most forgiving lager strain.
Ryan T on Nov 30, 2022
lager
Neil S on Nov 29, 2022
Perfect for lagers
Adam L on Nov 29, 2022
ferments at higher temp than other lager yeasts, and ferments out pretty neutral
Mike R on Nov 18, 2022
Using this on my Winter Lager
Eric H on Nov 16, 2022
Great lager yeast for clean beers.
Joseph R. F on Nov 11, 2022
the name Bohemian
David a y on Nov 11, 2022
I prefer this yeast for Pilsner
Derek E. W on Nov 8, 2022
To ferment German amber lagers at 68-70F under 15 psi.
Mark R on Nov 8, 2022
For fermenting
Ramon M on Nov 4, 2022
Making a Baltic Porter
Robert F G on Oct 31, 2022
Fan of this yeast
Jonathan S on Oct 20, 2022
I like the results and ease of use
Don R on Sep 27, 2022
A great yeast. My go to.
Mike S on Sep 23, 2022
Pilsner/Lager
Jed P on Sep 20, 2022
dry yeast is easier to ship
michael t on Sep 16, 2022
Used as house lager yeast by many breweries here in San Diego.
Nyle M on Sep 13, 2022
Forbidden Black Lager by Clawhammer Supply
Matthew D B on Aug 31, 2022
Last time I ordered liquid yeast, it arrived hot, with melted ice packs
James H on Aug 28, 2022
Stocking up
Bill B on Aug 18, 2022
makes clean lagers with higher fermentation temps
Nicholas A on Aug 16, 2022
Works well
Michael M on Aug 15, 2022
To use on snowflake
Shawn S on Aug 7, 2022
Sometimes I feel like a bohemian, Sometimes I .....
Chuckles on Aug 3, 2022
well performing lager yeast
John H on Jul 26, 2022
Classic German lager
Ken K on Jul 8, 2022
need it for my helles
Radach on Jul 8, 2022
Heard this was better than S23
Joel F. on Jul 7, 2022
to get free shipping and to have on hand.
Daniel R on Jun 28, 2022
For a specific recipe.
Valued C on Jun 17, 2022
Usual yeast I use instead of WLP 838 you raised the price on
Dwight B on May 21, 2022
Czech Dark Lager
Barry A on May 13, 2022
For Mexican lager
Curtis N on May 10, 2022
Making a lager
Roger on May 6, 2022
like the product
Steve J on Apr 28, 2022
Best Pilsner yeast there is and...I just fermented an IPA with it at room temperature...wonderful
Casey L G on Apr 20, 2022
Use it many times
Geof on Apr 11, 2022
Making Czech lager
Matthew J G on Mar 15, 2022
My go-to lager yeast. Ferments at ale temps with NO off-flavors.
Dennis S on Feb 25, 2023
Ferments at higher temps than other lager yeasts
Mike R on Jan 26, 2023
Reviews
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5.0 / 5.0
26 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
25
1
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0
0
Rated 5 out of 5
My go-to yeast for lagers
I've been using this exclusively for the last few years for all my German lagers using a 1L+1L (2-stage) yeast starter in my pressure fermenter, and this yeast consistently produces very clear lagers w/o any finings, and it's always amazingly active. I've even done lagers at room temp (68F-70F) at pressure and it's had a perfect taste every time. I usually make a Helles or Doppelbock, and this has become my go-to yeast since my last 2 Wyeast shipments went sideways. :(
August 21, 2025
Purchased
 over 4 years ago
Rated 5 out of 5
Best for pressure fermentation
Great for pressure fermentation at room temp. I've double pitched and had quite tasty results but had a pro notice right away from tasting that I over pitched. So, going to try one packet for a 5 gal batch this time instead of two. But, I've pitched dry at multiple temps in the 65° to 78° range after cooling and immediately gassed up to 15psi with a spunding valve and it's been off to the races within 24 hours. Fermentation done in corny keg and PET kegs with floating dip tube. Let ferment 7 days, cold crash to 36° for a couple days and you have a lager in 10 days, a pretty clear lager in 21 days, and if you're lucky some left in a month. Not guaranteed. I let it sit on the yeast cake the whole time and it just gets tastier and clearer every day.
August 19, 2025
Rated 5 out of 5
SafLager W 34/70
Great yeast, very clean fermentation, and high attenuation. I have used it when fermenting under pressure, up to 15 psi with great results.
February 22, 2023
Purchased
 over 2 years ago
Rated 5 out of 5
Never thought a dry yeast would outperform a liquid yeast ! (Vienna Lager)
I have been brewing since 1994, and exclusivly used liquid yeast that became easy to find since then.
I only used 2- 11.5 gram packs in a 11 gallon conical fermenter. Pitched in at 49F. then slowly ramped up to 64 over 10 days, held there 2 days, then slow cool 2-3 degress/day down to near freezing to Lager 2-3 weeks.
The results were spectacular! Very clean, maltiness from the Vienna malt and Pilsner malt shined through. Hops were snappy enough to balance the Malt, as the yeast played out so clean.
OG 1.050, EG 1.013
I love this yeast!
January 22, 2023
Rated 5 out of 5
Really enjoy using this yeast
Been using this yeast a few times recently after I started pressure fermentation in a korny keg. Beer turns out great and I can get it done in about a week and the beer has been clean and crisp. Used it in a German Pilsner and the Morebeer Cerveza kit. The Cerveza needed some time to clear up but tasted great. Will use again.
November 3, 2022
Purchased
 over 3 years ago
Rated 4 out of 5
Good product
Standard taste . Good for lager. But nothing special. The typical workhorse to produce a good lager.workes well.
April 13, 2022
Purchased
 over 3 years ago
Rated 5 out of 5
on steroids
Yeast is pretty amazing, using 9 lbs of pressure it has really worked well in the chocolate bock I brewed with it
January 10, 2022
Purchased
 over 3 years ago
Rated 5 out of 5
Saflager w34/70
Works as advertised.
January 3, 2022
Purchased
 over 3 years ago
Rated 5 out of 5
Probably the best yeast on the planet...
Torture it at 48F for weeks. Or spund it at 68F and 15PSI for a few days. You'll get clean, crisp beer that does a great job highlighting hops.

I don't even bother having US-05 or Nottingham in my yeast library anymore. If I want a clean ale, I use this lager lol. If I want a real ale, I use boddington's or fullers.
August 13, 2021
Purchased
 over 4 years ago
Rated 5 out of 5
Great yeast
This yeast makes great lagers even at temperatures up to 60 degF.
April 5, 2021
Purchased
 over 5 years ago
 
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