Will not be despatched until 8-9 January 2024

Also available in 10kg. Ask question for pricing. Blended complex yeast nutrient developed for low to moderate YAN conditions, which supplies a well balanced mix of organic nitrogen (wine yeast derived), inorganic nitrogen (DAP) and the vitamin thiamine.

• The nitrogen content of Fermaid® AT is composed of 50% yeast derived organic nitrogen (amino acids and peptides) and inorganic (NH4+).
• Organic nitrogen is assimilated more gradually than inorganic nitrogen. Different amino acids are taken up at different rates. Once inside the cell the alpha amino acids are integrated directly into proteins, degraded into ammonium (NH4+), or used to produce fruit driven esters.
• The NH4+ component is involved in biomass production of yeast cells. Reaching critical biomass is essential for successful fermentation.
• The addition of thiamine to this complex nutrient allows for an improvement in the assimilation of both nitrogen sources and reduces the risk of off flavour production.

This preparation is designed to assist wine yeast in the latter half of alcoholic fermentation (AF). When Fermaid® AT is used in place of a DAP-only nutrient strategy, significant improvements in the sensory profiles of the wines are also evident. Fruit driven esters and a reduction in sulphidic characters can be achieved.

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