|
Yeast Nutrients
The science of yeast nutrients is fascinating, and once understood, you will rethink how (or more specifically when) to use it. Just like yeast likes to consume the different sugars in wort in a specific order, so does it like to consume nutrients in a specific order. In early fermentation, yeast loves organic nitrogen. Adding DAP now can actually block yeast from using the amino acids. As alcohol rises during fermentation, yeast struggles to take in amino acids. DAP now gives yeast the inorganic nitrogen it can absorb.
-
Fermax - Often purchased for it's low price point, but the dosing instructions actually makes it less cost effective. Contains inorganic DAP.
-
Fermaid K - Probably the most recognizable brand name, it's reputation is well deserved. Contains inorganic DAP, and dosing instructions specify using at 1/3 sugar depletion. Now you understand why!
-
Fermaid O - Frequently confused for an organic product, it uses organic nitrogen, not inorganic DAP. Best used at the start of fermentation, and again at 1/4 to 1/3 sugar depletion. You could also use Fermaid O at the start of fermentation, and then switch over to Fermaid K or Fermax at 1/3 sugar depletion.
-
Go-Ferm Protect™ - Does not contain any nitrogen at all, which is why it is best used for yeast propagation before fermentation. It is usually followed by Fermaid O and/or Fermaid K.
| 
