Fermentis SafSpirit™ M-1 10kg

SafSpirit™ M‑1 is the most traditional strain for producing Scotch and single malt whiskies. It develops a characteristic “M” aromatic profile, fully respecting the expression of the grain and raw materials, making it a reference for barrel‑aged spirits.

Thanks to its high alcohol tolerance (> 15% ABV) and natural amylolytic capacity, it ensures excellent attenuation, including on complex sugars and dextrins. It is therefore an ideal solution when enzyme additions are not permitted. Its robustness also makes it a good choice for continuous fermentation.

The professional 10 kg carton format meets the needs of distilleries seeking a stable, high‑performance yeast suitable for large‑scale fermentations.

Why choose this product?

• Traditional strain for Scotch, single malts and barrel‑aged spirits.
• Very high attenuation thanks to the utilisation of complex sugars and dextrins.
• High alcohol tolerance (> 15% ABV) and robust fermentation (20–32 °C).

Technical specifications

• Type: active dry yeast for distillation
• Strain: Saccharomyces cerevisiae
• Fermentable sugars: glucose, fructose, maltose, sucrose, maltotriose, dextrins
• Fermentation temperature: 20–32 °C
• Dosage: 30–80 g/hl
• Pitching: direct inoculation or rehydration at 25–35 °C
• Viable cells: > 15 × 10⁹ cfu/g
• Dry matter: 94.0–96.5%
• Total bacteria: < 1 cfu / 10⁷ yeast cells
• Acetic acid bacteria: < 1 cfu / 10⁸ cells
• Lactic acid bacteria: < 1 cfu / 10⁷ cells
• Ingredients: yeast, sorbitan monostearate (E491)
• Packaging: 10 kg carton (vacuum‑packed bag)
• Storage: < 25 °C (6 months), ideally < 15 °C

Technical Tips

• To maximise grain expression, maintain fermentation between 20 and 26 °C.
• For traditional whiskies, aim for the upper dosage range (60–80 g/hl).
• For mashes rich in dextrins, prefer direct pitching for optimal kinetics.

Technical FAQ

• Is it suitable for traditional Scotch whiskies? Yes, it is the historical strain for Scotch and single malts.
• Can it be used for rums? Yes, it is appreciated for rich and complex rums.
• Can it be pitched directly? Yes, direct pitching is recommended.
• How long can an opened bag be stored? Up to 7 days at 4 °C, tightly sealed.