Fermaid K | 1oz & 80g Sizes

Fermaid K Yeast Nutrient for Wine, Mead, Cider, and Fruit Fermentation

Fermaid K is a complex yeast nutrient used when wine, mead, cider, or fruit must needs more fermentation support than the base ingredients provide. Scott Labs describes Fermaid K as a YAN source for low-YAN fermentations that supplies a blend of organic nitrogen from amino acids and inorganic nitrogen from ammonia.

Use Fermaid K when your nutrient plan calls for a complete nutrient that includes both DAP and yeast-derived nutrition. It is especially useful when honey, fruit, juice, or must does not provide enough yeast-assimilable nitrogen on its own.

How much Fermaid K should I use?

Scott Labs lists Fermaid K at 25-50 g/hL, or about 2-4 lb per 1,000 gallons. At 25 g/hL, Scott Labs lists a measurable YAN contribution of about 25 ppm.

For homebrew-scale wine, cider, and mead batches, follow your recipe, YAN target, or nutrient calculator rather than adding nutrient by habit. During active fermentation, suspend Fermaid K in water, juice, or must and add slowly to avoid rapid CO2 release and foaming.

When to add Fermaid K

Scott Labs lists Fermaid K as best used around 1/3 sugar depletion when YAN needs cannot be met with Fermaid O or STIMULA nutrients. For staggered mead nutrient schedules, follow the schedule built for your original gravity, yeast strain, and target fermentation profile.

Best uses

• Wine, cider, fruit wine, and mead with low starting YAN
• Fermentations that need both DAP and complex yeast nutrition
• Staggered nutrient plans where Fermaid K is specifically called for

Related fermentation nutrients

For DAP-free organic nitrogen, see Fermaid O. For yeast rehydration, use Go-Ferm Protect. For inorganic nitrogen only, see diammonium phosphate (DAP). You can also browse all yeast nutrients and enhancers.

Storage

Store Fermaid K sealed in a cool, dry place. Keep the package tightly closed after opening and follow the dated expiration.