Yeast Nutrient is a mixture of diammonium phosphate and food-grade urea that nourishes the yeast. It can be used to supplement prepared nutrients or can be used by itself.
The purpose is to ensure that the yeast remains healthy throughout fermentation.
Directions: Add Yeast Nutrient prior to fermentation by stirring directly into the juice or must until completely dissolved.
Dosage: For heavier-bodied wines add ½ teaspoon per gallon. For lighter-bodied wines add 1 teaspoon per gallon. Yeast Nutrient can always be added later to wine for stuck fermentation as needed.
Maximum Dosage: Total dosage should not exceed 1-1/2 teaspoon per each gallon of wine.