Fermaid K

A balanced blend of minerals, proteins, amino acids, vitamins, and diammonium phosphate (DAP) an important source of nitrogen.  Improves yeasts ability to tolerate alcohol and keep volatile acidity levels low, and helps your yeast through a healthy and trouble free fermentation.    

Typically added to fermentation after 1/3 sugar depletion.

Add 1gram/gallon of must/juice.  Dissolve in water before addition.