Fermaid K

Fermaid K

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A complex formula that provides DAP, free amino acids, yeast hulls, unsaturared fatty acids, sterols, and micronutrients such as magnesium sulfate, thiamin, folic acid, biotin, calcium pantothenate, and other vitamins and minerals. Yeast use Nitrogen for protein synthesis and to maintain cellular growth. Nitrogen from the alpha amino acids contained in Fermaid K is utilized much more efficiently than from the ammonia salts. The unsaturated fatty acids and sterols available in Fermaid K are important survival factors needed to maintain alcohol resistance. They also help keep volatile acidity levels low. The cell wall fractions, available through the included yeast hulls, absorb medium chain fatty acids that are toxic to the yeast. They also provide nucleation sites to help keep the yeast in suspension. Fermaid K is normally used in conjunction with GO-Ferm and added to the fermenting wine after 1/3 sugar depletion. Our Winemaking consultant Shea Comfort uses the analogy of a marathon to describe when to use nutrients. GO-Ferm is the snack before the race and Fermaid K is the mid-race power bar that gets your yeast through a healthy, problem-free ferment. It is a formula used by hundreds of commercial wineries. You do not need to add any additional fertilizers or DAP when adding Fermaid K. Use approximately 1 gram per gallon. Rehydrate in distilled water.

A rough approximate of weight is 1 tsp = 4.7 grams. We highly recommend using a scale to weigh the product for an accurate dose. We do not recommend relying on these rough conversions for accurate dosage rates.

Community Q&A

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Browse 2 questions Browse 2 questions and 53 answers
Why did you choose this?
MoreFlavor Store
Yeast starter
charles b on Apr 19, 2019
FoR mEaD
Matthew O on Apr 16, 2019
Yeast starter
charles b on Apr 19, 2019
Brewing a barley wine and need the yeast to stay active.
Adam K on Apr 18, 2019
FoR mEaD
Matthew O on Apr 16, 2019
Same as for yeast
Jim S on Apr 15, 2019
Fermaid works well in feeding yeast used in making higher ABV meads.
Thomas D on Apr 15, 2019
nutrient aid for strong ales
David C L on Apr 10, 2019
Your site rec
Kevin B on Apr 6, 2019
recommended by book
Ben D on Mar 23, 2019
Bobby H on Mar 19, 2019
To help finish my fermentations.
chris l on Mar 2, 2019
Great product.
David B on Feb 9, 2019
Mead nutrient
Brooks D on Feb 5, 2019
Need it for my starters and fermentation
Travis Nissen on Jan 19, 2019
to help the yeast
james b b on Jan 4, 2019
It is appropriate for our product
It was offered while adding the yeast to my cart
Anne C F on Jan 3, 2019
Nutrient dosing regimen for mead.
Pete B on Jan 3, 2019
need it
James S on Dec 31, 2018
Yeast nutrient for starters and beers with lots of honey
Robert F G on Dec 6, 2018
Supplies to brew in Africa
Nathan C on Dec 3, 2018
trying something new
Kevin Conroy on Dec 3, 2018
Great for yeast
Cindy D on Nov 19, 2018
Hope to acheive a lower FG
Kevin Dyson on Nov 17, 2018
It is supposed to increase yeast viability and ethanol tolerance.
Thomas P on Nov 17, 2018
to start a new batch
William P S on Nov 17, 2018
works well
Dan G on Nov 17, 2018
Easy to use ,proved success in red wine making.
Yin Min H on Oct 31, 2018
William H on Oct 25, 2018
Need to make new starters
F E on Oct 25, 2018
i need nutrient for my primary fermentation
Aaron S on Oct 19, 2018
Yeast starter additive
Robert F G on Oct 17, 2018
great supplement during fermentation
Doug M on Oct 10, 2018
have used it before
Raymond K on Oct 9, 2018
Heard good things
Zach W on Oct 5, 2018
Stellar product
Joel S on Oct 4, 2018
must for smooth fermentation
Valued C on Oct 3, 2018
Aid in fermentation
Tony B on Oct 2, 2018
Ran out
Joni S on Oct 1, 2018
More wine recommendation
Lannie S on Sep 25, 2018
Always use in homebrew, prevents incomplete fermentations
Stewart B on Sep 24, 2018
past experience
Steve C on Sep 22, 2018
I have been ising for years with good results. Never had a stuck fermentation or off flavors.
David P on Sep 21, 2018
A friend recommended it. I tried it a month ago and was very pleased
Heath M on Sep 21, 2018
it was recommended by MoreBeer!
James K. R on Sep 19, 2018
Provides an adequate level of N during fermentation of cider
Robert B on Sep 16, 2018
Need a yeast nutrient
Andrew L on Sep 13, 2018
Recommended in wine making information on site
Kevin V on Sep 11, 2018
have used successfully in past years
sam l on Sep 11, 2018
wine fermentation additive
Michael H on Sep 11, 2018
Nutrient for yeast starter
Dennis Hannaford on Sep 10, 2018
Brewing a barley wine and need the yeast to stay active.
Adam K on Apr 18, 2019
Same as for yeast
Jim S on Apr 15, 2019
Doe this go in the boil or in the cooled wort?
tom brezler on Jan 15, 2019
BEST ANSWER: This is a nutrient addition used to meet nitrogen requirements for primary fermentation of wort / must that cannot meet the nitrogen demands with the base ingredients used. This would go into the primary fermentation vessel in either phases or as a single addition depending on your needs.

4.7 / 5.0
19 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great stuff to keep your yeast happy and strong.
March 19, 2019
2 months ago
Fermaid K
Arrived without damage
December 2, 2018
5 months ago
Useful as a yeast starter
Part of my regular yeast rehydration procedure. MoreWine’s rehydration sheet says to use Go-Ferm initially, but the same amount of Fermaid-K gets my ICV-D254 and Zymox FX10 yeast going fast and seriously happy by the time I pitch. I haven’t added to the must, per se, just use as a yeast starter. Great fermentation’s, every time. (Btw, I’m doing fermentations in batches of 500-1100 pounds of must at a time.)
October 26, 2018
6 months ago
Great product. And it comes in very convenient amounts
July 4, 2018
10 months ago
It works!
My favorite yeast food. Seems to work better than some others, and it doesn't get go bad and clumpy over time. Helps the yeast complete their job.
April 15, 2018
1 year ago
First time
This was the first time I used nutrients in my wine. It is only the second time making wine. Fermaid K seemed to work very well. I had a very quick and active fermentation.
March 23, 2018
1 year ago
Excellent as part of a comprehensive staggered nutrient regiment for mead.
March 7, 2018
1 year ago
Works Great!!!
Works great!! I rely on this product for a healthy fermentation. It arrived quickly! Thanks!!
February 8, 2018
1 year ago
Souvignon Blanc
worked as advertised....perfect.....
January 27, 2018
1 year ago
Works but use Fermaid O instead
This product works to help ferment your mead but my meads improved so much more once I started using Fermaid O instead.
January 24, 2018
1 year ago