To ensure a healthy fermentation, nutrients can be combined with yeast immediately prior to inoculation or added directly to the must. The additions provide yeast with micro-nutrients and prevent nitrogen deficiencies. Low levels of available
nitrogen can lead to a sluggish or stuck fermentation. Go Ferm and DAP are common nutrient additions.

Go Ferm- Yeast strains are commonly packaged in a dry state and need to be re-hydrated with warm water to become active. Go-Ferm is a micro-nutrient added during the re-hydration. It is combined with the yeast prior to inoculation so that the nutrients are not consumed by competing wild yeast strains present in the must.

Diammonium Phosphate or DAP, contains fermentable nitrogen for the development of healthy new yeast cells.