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Fermentis SafLager™ W-34/70 Dried Lager Yeast 11.5g

Fermentis SafLager™ W-34/70 Dried Lager Yeast 11.5g

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SafLager W-34/70 is a famous lager yeast strain from Weihenstephan in Germany, used by breweries around the world. Fermentis calls it a strong, robust lager yeast for neutral beers, with a good balance of floral and fruity aromas and a clean finish.

Character

  • Clean and neutral, with low esters and higher alcohols
  • Balanced floral and fruity aromas
  • Fast sedimentation

Fermentis specification

  • Pack: 11.5g sachet
  • Type: bottom-fermenting lager yeast
  • Temperature: 12-18°C
  • Apparent attenuation: 80-84%
  • Alcohol tolerance: 9-11%
  • Dosage: 80-120g per hectolitre, so allow two 11.5g sachets for a 23 litre batch

How to use

Pitch directly onto the wort, or rehydrate in ten times its weight of sterile water or boiled, hopped wort at 15-25°C for 15-30 minutes. Store sachets below 24°C for up to 6 months, or below 15°C for longer. Once opened, reseal, keep at 4°C and use within 7 days.

A great choice for German lagers, pilsners and Marzen. Brew it with Saaz or Tettnanger hops on a base of Crisp Lager Malt. For a fruitier lager try SafLager S-23. See the Fermentis yeast range and our beer yeast selector.

Frequently Asked Questions
What temperature does W-34/70 need?

Fermentis gives 12-18°C as the ideal fermentation range.

How much yeast for a 23 litre lager?

Fermentis recommends 80-120g per hectolitre, which means two 11.5g sachets for 23 litres.

Does it need rehydrating?

It can be pitched dry onto the wort, or rehydrated first for 15-30 minutes.

How should I store it?

Below 24°C for up to 6 months, or below 15°C for longer. Use an opened sachet within 7 days, resealed and kept at 4°C.

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Yeast Specification

📉HighAttenuation
🌡️9–15°CTemp Range
🫧HighFlocculation
🍷9%ABV Tolerance
🔬 SpeciesSaccharomyces pastorianus
⏱️ Fermentation SpeedSlow
➕ Pitch Rate11.5g/20–30L
🎯 Recommended ForGerman Pils/Helles
See all specifications (7 more)
🍑 Ester ProfileLow - Neutral
🌿 Phenolic ProfileNone
🌱 Hop PairingsHallertau/Saaz
🌾 Malt PairingsPilsner/Munich
🍺 Similar BeersWeihenstephan-style lagers
❄️ Storage Temp4°C
📅 Shelf Life36 months