Lallemand FERMAID® AT is a special complex yeast nutrient suitable for use in alcohol fermentation of grape must winemaking.
Developed by Lallemand, the use of FERMAID® AT reduces the occurrence of sluggish and stuck fermentations.
FERMAID® AT helps the maximum cell density get through the stationary phase and complete alcohol fermentation as quickly and as efficiently as possible especially under limiting available nitrogen conditions.
FERMAID® AT is a blended complex yeast nutrient that supplies a well-balance mix of inorganic (DAP) and organic nitrogen specific inactivated yeast, completed by thiamin. The thiamin allows a better assimilation of both nitrogen sources, and reduces the risk of off-flavours production. The inorganic mix is aimed at encouraging a more balanced metabolic fermentation outcome.
Dose Rate of Fermaid® AT: Fermaid® AT is recommended for low YAN conditions.
A 30g/hL (300 ppm) dose of Fermaid® AT provides 36 mg/L of actual YAN.
For moderate to high YANs Lallemand recommends to use the product Fermaid® O.