Fermaid O is a newer formulation of the same Fermaid K that winemakers everywhere have learned to trust their ferments to. The main difference in composition between the two, is that the Fermaid O has replaced the inorganic DAP with an organic source. In terms of how this benefits the winemaker, there are several points!

Features:

• Organic Nitrogen is easier for your yeast to digest, resulting in a smoother, more consistent fermentation.
• Fewer fermentation spikes means better yeast health, and the ability to ferment to its full capacity.Brewing Ingredients
• Compared to DAP, Fermaid O will result in lower heat output from the yeast, and lower levels of negative sulfur compounds.
  
  This is a nutrient which will boost the quality of wine, regardless of process. Lower heat production, less negative flavor compounds, better overall fermentation kinetics and flavors!
  
  To Use:
  Use at a rate of 1.5g / gal of must/juice.