Uvaferm 43 RESTART Yeast

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Pre-acclimated fructophilic yeast for restarting stuck fermentations 

(Use in: Restarts, Late Harvest Wines)

UVAFERM 43 RESTART™ is a preacclimated yeast adapted to quickly restart a stuck fermentation. This yeast is the result of an innovative process developed by Lallemand Oenology using Uvaferm 43™, a strain isolated by Lallemand Oenology in collaboration with Inter-Rhône in France.

43 RESTART’s resistance to stressful conditions of stuck fermentations has been naturally enhanced. Acclimation includes addition of micronutrients, sterols,  and polyunsaturated fatty acids to strengthen 43 RESTART cell membranes. Yeast cells are more robust, acclimate quicker and have a lower mortality rate after inoculation. 43 RESTART is sensory neutral and very malolactic bacteria compatible.

Restart Protocol: For best results use the 43 RESTART protocol for stuck wines which includes RESKUE™ and FERMAID O™.


  • Alcohol Tolerance: 17%
  • Nitrogen Needs: Low
  • Temperature Range: 55-95°F
  • Sensory Impact: Neutral
UVAFERM 43 RESTART - Allergen Statement
UVAFERM 43 RESTART - Food Safety Statement
UVAFERM 43 RESTART - Non-GMO Statement
UVAFERM 43 RESTART - Safety Data Sheet
UVAFERM 43 RESTART - Technical Data Sheet