NAPA FERMENTATION SUPPLIES, SINCE 1983
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  • Uvaferm 43 Restart Yeast 500 grams

Uvaferm 43 Restart Yeast 500 grams

SKU: 06243
$60.50
$60.50
Unavailable
per item


Restart Stuck Fermentations


  • Isolated by Lallemand in collaboration with the research center of Inter Rhône.
  • Notable for its powerful ability to restart stuck or sluggish fermentations due to high alcohol tolerance (18%+ v/v) and low relative nitrogen needs.

43 RESTART is the result of an innovative pre-acclimation process developed by Lallemand and approved by the Inter-Rhone Laboratory using Uvaferm 43. 43 RESTART’s resistance to the stressful conditions of stuck fermentations has been naturally increased. This process includes the addition of micronutrients, sterols and polyunsaturated fatty acids to strengthen the yeast cell membranes. The yeast cells are more robust, acclimate more quickly and have a lower mortality rate after inoculation. 43 RESTART is sensory neutral and has been known to ferment up to 18% (v/v). It is a low SO2 and H2S producer with relatively low nitrogen demand. 43 RESTART is malolactic bacteria compatible. For best results use the 43 RESTART protocol including Reskue and Fermaid O. Restarts can be done in a few efficient steps.


Alcohol Tolerance: 18% ABV

Competitive Factor: Yes

Fermentation Speed: Fast

Malolactic Compatibility: Good

Maximum Temperature: 35°C (95°F)

Minimum Temperature: 13°C (55°F)

Nutrient Demand: Low

Species: S. bayanus

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Napa Fermentation Supplies
Located Inside the
Napa Expo Fairgrounds 
575 Third St, Bldg. A
Napa, California 94559
Phone (707) 255-6372

Prices Subject to Change

Shop Hours:
Mon-Fri. 9 to 5
Saturday 10 to 5
Sunday Closed
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  • HOME
  • SHOP NOW
  • Getting Here / Contact Us
  • APPLY FOR CREDIT
  • In Memory of Pat Watkins
  • Equipment Financing