Fermentis SafLager™ W34/70 2.5kg

SafLager™ W‑34/70 is a bottom‑fermenting yeast derived from the famous Weihenstephan strain, used worldwide for producing high‑quality lagers. It delivers clean, balanced beers with a subtle mix of floral and fruity aromas while maintaining excellent drinkability.

With an attenuation of 80–84% and fast sedimentation, it ensures a regular fermentation and efficient natural clarification. Its neutrality makes it an ideal yeast for Pils, Helles, Export, Märzen and all classic lager styles.

The professional 2.5 kg format meets the needs of craft breweries seeking a stable, robust and high‑performance yeast for large‑scale batches.

Why choose this product?

• Clean and neutral profile ideal for all traditional lagers.
• Attenuation 80–84% for a dry, clear and highly drinkable result.
• Fast sedimentation supporting natural clarification.

Technical specifications

• Type: active dry bottom‑fermenting yeast
• Strain: Saccharomyces pastorianus
• Aromatic profile: floral, light fruity, very clean
• Apparent attenuation: 80–84%
• Flocculation: high
• Sedimentation: fast
• Ideal fermentation temperature: 12–18 °C
• Dosage: 80–120 g/hl (up to 200–300 g/hl below 12 °C)
• Ingredients: yeast, sorbitan monostearate emulsifier (E491)
• Viable yeast: > 6.0 × 10⁹ cfu/g
• Purity: > 99.999%
• Lactic acid bacteria: < 1 cfu / 6.0 × 10⁶ cells
• Acetic acid bacteria: < 1 cfu / 6.0 × 10⁶ cells
• Pediococcus: < 1 cfu / 6.0 × 10⁶ cells
• Wild yeast: < 1 cfu / 6.0 × 10⁶ cells
• Packaging: 2.5 kg pack
• Storage: < 25 °C (6 months), ideally < 15 °C
• Shelf life: 36 months

Technical Tips

• For a very clean lager, ferment between 12 and 14 °C.
• Increase pitching rate below 12 °C to avoid sluggish fermentation.
• A diacetyl rest at 16–18 °C improves aromatic clarity.

Technical FAQ

• Is it suitable for very dry lagers? Yes, its high attenuation ensures a clean and dry profile.
• Can it be used for traditional Pilsners? Yes, it is one of the most widely used strains worldwide.
• Can it be pitched without rehydration? Yes, the E2U™ certification allows direct pitching.
• How long can an opened bag be stored? Up to 7 days at 4 °C, tightly sealed.