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⚡ Ignite your fermentation game with Fermaid K — the secret weapon for next-level brews!
Fermaid K is a certified organic, complex yeast nutrient powder designed to supercharge fermentation by delivering a precise 1 gram per gallon dose of ammonia salts, amino acids, sterols, and essential vitamins. Ideal for high nutrient-demand yeasts, it’s applied at the start and again at one-third sugar depletion, ensuring robust yeast health and accelerated fermentation. Compatible with Go-Ferm, it’s a must-have for professional and home brewers seeking consistent, high-quality results.

| ASIN | B074DB7H5Z |
| Best Sellers Rank | #258,399 in Grocery & Gourmet Food ( See Top 100 in Grocery & Gourmet Food ) #759 in Beer Brewing Ingredients |
| Brand Name | CellarScience |
| Container Type | Canister |
| Customer Reviews | 4.7 4.7 out of 5 stars (268) |
| Global Trade Identification Number | 00843200100190 |
| Item Form | Powder |
| Item Weight | 80 Grams |
| Manufacturer | CellarScience |
| Manufacturer Part Number | AD345B |
| Material Features | Certified Organic |
| Model Number | AD345B |
| Number of Items | 1 |
| UPC | 843200100190 |
| Unit Count | 2.8 Ounce |
C**S
Super charge fermentation
Does an excellent job! I’ve added this Fermaid K to a couple gallons of must to brew Mead and in about 8 hours the fermentation took off in a supercharged style! I’ve attached a video of the active fermentation to prove it. At only 1 gram per gallon of must this stuff is definitely a “must”.
C**K
Great additive that does it's job well.
Straight up product with proven record. Fermaid K is what it is. This is the second time I've ordered this product and it's worked perfectly both times.
G**K
for wine making
worked as described
G**G
Great product
Used for rehydrating the yeast for a meade. Got the must down to 1.000 Final Gravity with healthy yeast
S**Y
Good for citrus brews
Not needed in every brew. But, if a brew gets 'stuck' because of acidity or lack of nitrogen, fermaidK can save it.
M**L
my poor yeasties have been stressed
Hokey smokes! Been brewing old school for years, my poor yeasties have been stressed, and now that I am paying attention, the yeast are happier, my melomels are tastier, and as an added bonus, they do not need to sit in the carboys for months and months anymore.
C**.
The professional yeast nutrient
This is the go-to for many home brewers. I personally add a dose pre-fermentation and a second one on the fourth day. Be sure to mix it with water before adding it halfway through fermentation, otherwise, it will make your wash explode like a volcano.
M**E
I used some last night in a mead and the yeast seems very happy this morning
It is as expected. I have moved it to a zip lock bag for storage after opening it though. I used some last night in a mead and the yeast seems very happy this morning. Lot's of fast fermentation going on.
D**N
Does exactly what it is supposed to do
Trustpilot
3 weeks ago
1 month ago