Lalvin Fermaid O Wine Nutrient

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SKU: WN-FERMAID-O Categories: ,


  • Product description

    Fermaid O is the latest nutrient developed by Lallemand’s winemaking nutrient research team headed by Dr.

    Anne Ortiz-Julien.Fermaid O is a blend of inactivated yeast fractions rich in organic nitrogen. Fermaid O does not contain added ammonia salts (DAP) or added micronutrients.

    The importance of organic nitrogen from yeasts is well known as a highly efficient nutrient source for wine yeasts,

    especially when compared to inorganic nitrogen from DAP.

    In addition, Fermaid O consistently produces lower levels of negative sulphur compounds, compared with DAP. With its high content of organic nitrogen, Fermaid O can help winemakers achieve steady fermentations, while limiting temperature peaks. When inorganic nitrogen (DAP) additions are NOT desired, the use of Go-Ferm® or NATSTEP™ and Fermaid O is recommended. With this combination, Go-Ferm or NATSTEP provides needed micronutrients during yeast rehydration, and Fermaid O supplies critical nutrients and survival factors to help the yeast avoid stressed conditions.

    Note: In low nutrient situations, yeast available nitrogen (YAN) may be insufficient to avoid fermentation problems.

    Fermaid® O is OMRI listed. It is an autolyzed yeast nutrient with a high content of organic nitrogen (amino acids). It is formulated without DAP. It is best to add Fermaid O in two doses. Add half the dose at the end of lag phase (at the onset of fermentation) and the other half between 1/4 and 1/3 sugar depletion.

    To Use: Fermaid O should be mixed with room temperature water before adding to an active fermentation to avoid CO2 release and overflowing of tanks or barrels. The amount of water used is not critical. Simply add enough to make a slurry.

    Storage: Dated expiration. Store at 18°C (65°F). Once opened, keep tightly sealed and dry.

  • Additional information

    Additional information

    Weight (kg)

    10, 2.5

    Stock Unit


    Stock-to-base Ratio


    Available In

    Lalvin Fermaid O Wine Nutrient (10kg), Lalvin Fermaid O Wine Nutrient (2.5kg)