Yeast Nutrient is a combination of DAP (diammonium phosphate) and food grade urea. These provide yeast the vitamins and nutrients they need to thrive and encourages faster and more complete fermentation.
Usage is 1 teaspoon per gallon.
There are approximately 7 teaspoons per ounce.
Available in 2 oz, 8 oz & 1 lb sizes, packaged in a re-sealable zip bag.