SafSpirit™ HG-1 Fermentis by Lesaffre

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SKU: YHG1500

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SafSpirit™ HG-1 Fermentis by Lesaffre Yeast is the choice for very high gravity fermentations.

SafSpirit™ HG-1 Fermentis by Lesaffre Yeast is used for Very High Gravity (VHG) fermentation. High tolerance to ethanol, able to reach 18% v/v, depending on the process and substrate. Very good resistance to the osmotic pressure and high fermentation temperatures (thermotolerant yeast). This strain achieves good yields when fermenting at VHG, allowing maximized production capacity, generating incredible savings in energy. Generally produces neutral alcohol profiles.

Ferments all kind of mashes, worts, or juices produced from any kind of grain, potatoes or other type of starches, sugar cane substrates, agave or tequila juice, and pure sugar solutions.


yeast (Saccharomyces cerevisiae), emulsifier: E491 (sorbitan monostearate)


  • 30-50 g/hl

Rehydration Instructions:

  1. Rehydrate the yeast in 10 times its volume of water or wort at 25°C – 35 °C (77.0°F – 95.0°F)
  2. Leave to rest for 15 minutes
  3. Gently stir
  4. Pitch in the fermentor


During transport: The product can be transported and stored at room temperature for periods of time not exceeding 3 months, without affecting its performance.

At final destination: Store in cool (<10°C/50°F), dry conditions.

Shelf Life:

Refer to best before end date printed on the sachet. BB-07/2024

Opened sachets must be sealed and stored at 4°C (39°F) and used within 7 days of opening. Do not use soft or damaged sachets.

Typical Analysis:

% dry weight 94.0 – 96.5
Viable cells at packaging > 20 x 109 /gram
Total bacteria* < 1 x 104/gram
Acetic acid bacteria* < 1 x 103/gram
Lactobacillus* < 1 x 104/gram

Pathogenic micro-organisms: in accordance with regulation

Technical Data Sheet