Go-Ferm Sterol Flash - Yeast Rehydration Nutrient - Works in Cool Water - 20 g

GO-FERM STEROL FLASH™ is a revolutionary yeast rehydration nutrient that is fast and simple to use without compromising on yeast health and performance.

Benefits of Sterol Flash include:

  • Allows yeast to be rehydrated in cool water (15°C/60°F) without any loss of viability or vitality.
  • Eliminates the need for acclimatization steps.  Rehydrated yeast can be added directly to juice or must after 15 minutes.
  • Improves fermentation kinetics and aroma production.
  • Non-clumping, instantly disperses in cool water.
  • Derived from autolyzed yeast, GO-FERM STEROL FLASH provides optimized levels of micronutrients (vitamins and minerals) and extremely high levels of survival factors including sterols and unsaturated fatty acids.

Go-Ferm has been developed as the result of a multi-year study of prob­lem fermentations by Lallemand and National Agricultural Research Institute (INRA) in France. Their scientists found that in problem musts deficiencies in sterols and polyun­saturated fatty acids can leave yeast susceptible to osmotic shock, ethanol toxicity, temperature and other stress factors. The Go-Ferm product line has been continually improved through the years with updates variously known as Go-Ferm, Go-Ferm Protect, Go-Ferm Protect Evolution, and now Go-Ferm Sterol Flash.

Go-Ferm Protect incorporates sterols and polyunsaturated fatty acids (for cell protection) together with vitamins and minerals to help ensure yeast survival and to help main­tain fermentation activity to completion. 

How to Use

Basic Directions:

For each 10 grams of yeast to be hydrated, use 12 grams Go-Ferm mixed into 4 oz (120 ml) distilled water at around 60° F.  Add the yeast.  Gently break up any clumps and allow yeast to hydrate for 15 minutes. Pitch into the must. 

For a more complete discussion and rehydration procedures:

Please open this printable pdf instruction.

Stuck Fermentation:

See our article on Restarting Stuck Wine Fermentations.



We are not happy unless you are. To ensure your satisfaction, we offer our guarantee backed by our promise of a full store-credit refund on any unsatisfactory product or delivery---no need to ship anything back. Simply email us at info@thebeveragepeople.com if the need to claim this guarantee should arise.

Pickup Locations Available for This Item

The Beverage People Warehouse, Santa Rosa.

Fulfillment occurs Tues - Sat, 11 AM - 5 PM. We aim to fulfill orders in 2 hours or less, whenever possible.

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How to Return Goods for Refund

All our supplies are guaranteed for one year. Request for refunds occurring more than 30 days after the date of purchase on non-defective goods may be granted as a store credit if the goods are returned in their original condition. Yeast is perishable and should be refrigerated on arrival. No refunds are allowed on sales of living organisms such as yeast and bacteria.