Uploaded March 2026 | Updated September 2026, 3 weeks ago
We're launching SafSpirit™ R-4: a reliable yeast, especially in tough conditions such as low-grade sugar cane molasses.
The composition of molasses, the primary feedstock for rum production, is one of the major variables known to affect rum quality. For this reason, Fermentis is proud to bring SafSpirit™ R-4 to the market. SafSpirit™ R-4 is a reliable yeast strain selected to perform consistently well, especially on low-grade molasses.
The quality of molasses can vary across countries, depending on various factors such as composition (mineral content, ash, unfermentable sugars, solids). Some yeast strains will struggle to ferment lower-quality molasses. SafSpirit™ R-4, however, shows its true potential in challenging conditions and can produce high levels of ethanol even in molasses with several stress factors (high gravity, low pH, high temperatures).
Moreover, considering its good performance in stressful conditions with high sugar concentration, SafSpirit™ R-4 is a suitable solution to ferment sugar cane molasses at intermediate and high gravity.
Fermentations with SafSpirit™ R-4 generally produce neutral flavor profiles. SafSpirit™ R-4 is available in 500g and 10kg formats.
This new yeast strain joins the Fermentis portfolio to give beverage makers more choice to create quality spirits. Our SafSpirit™ range of innovative solutions is designed to give distillers more confidence and control when creating their desired style. We encourage distillers to experiment with numerous yeast strains in the SafSpirit™ range to create unique and exceptional beverages. The strains in this range have been shown to develop distinct flavors and related characteristics depending on recipe and processing parameters.
Learn more here: fermentis.com/en/product/safspirit-r-4
🕸️ To purchase our products and solutions, visit our website and find the distributor nearest to your location: https://frmt.is/distributors
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Follow us on LinkedIn: linkedin.com/company/fermentis
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Download the Fermentis App in Apple Store: https://frmt.is/Fermentis-App-iOS
Download the Fermentis App in Google Store: https://frmt.is/Fermentis-App-Android
Find your local distributor: https://frmt.is/distributors
We're launching SafSpirit™ R-4: a reliable yeast, especially in tough conditions such as low-grade sugar cane molasses.
The composition of molasses, the primary feedstock for rum production, is one of the major variables known to affect rum quality. For this reason, Fermentis is proud to bring SafSpirit™ R-4 to the market. SafSpirit™ R-4 is a reliable yeast strain selected to perform consistently well, especially on low-grade molasses.
The quality of molasses can vary across countries, depending on various factors such as composition (mineral content, ash, unfermentable sugars, solids). Some yeast strains will struggle to ferment lower-quality molasses. SafSpirit™ R-4, however, shows its true potential in challenging conditions and can produce high levels of ethanol even in molasses with several stress factors (high gravity, low pH, high temperatures).
Moreover, considering its good performance in stressful conditions with high sugar concentration, SafSpirit™ R-4 is a suitable solution to ferment sugar cane molasses at intermediate and high gravity.
Fermentations with SafSpirit™ R-4 generally produce neutral flavor profiles. SafSpirit™ R-4 is available in 500g and 10kg formats.
This new yeast strain joins the Fermentis portfolio to give beverage makers more choice to create quality spirits. Our SafSpirit™ range of innovative solutions is designed to give distillers more confidence and control when creating their desired style. We encourage distillers to experiment with numerous yeast strains in the SafSpirit™ range to create unique and exceptional beverages. The strains in this range have been shown to develop distinct flavors and related characteristics depending on recipe and processing parameters.
Learn more here: fermentis.com/en/product/safspirit-r-4
🕸️ To purchase our products and solutions, visit our website and find the distributor nearest to your location: https://frmt.is/distributors
---------------------------------------------------------------------------------
Follow us on Instagram: instagram.com/fermentisbylesaffre
Follow us on LinkedIn: linkedin.com/company/fermentis
Follow us on Facebook: facebook.com/Fermentis
Follow us on X: https://x.com/Fermentis
Download the Fermentis App in Apple Store: https://frmt.is/Fermentis-App-iOS
Download the Fermentis App in Google Store: https://frmt.is/Fermentis-App-Android
Find your local distributor: https://frmt.is/distributors
