Diammonium phosphate (DAP) is a nutrient that is essential for yeast growth and fermentation. It is a source of nitrogen, which is required by yeast to produce amino acids, proteins, and other essential compounds.
 
DAP is a particularly important nutrient for winemaking because it can help to improve the quality of the wine. DAP can help to:
Improve yeast fermentation activity
Reduce the risk of stuck fermentation
Produce cleaner flavors and aromas in wine
Improve the color and stability of red wines
 
DAP is a safe and effective nutrient that can be used to improve the quality of any wine. It is a good choice for both new and experienced winemakers.