Fermaid O Yeast Nutrient

Fermaid O Yeast Nutrient

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The Fermaid line of products are a range of nutrients that have been adopted from winemaking and put to use supporting beer fermentations as well.
Fermaid O is a newer formulation of the long trusted Fermaid K nutrient which replaces the inorganic DAP in Fermaid K with an organic source of nitrogen instead. The organic nitrogen in Fermaid O is better for your yeast, and that results in better beer!
Organic Nitrogen is easier for your yeast to digest, resulting in a smoother, more consistent fermentation. Fermaid O fermentations show fewer temperature spikes, which minimizes negative effects that can be caused by heat. Compared to DAP, Fermaid O results in more consistent and complete fermentation, and lower levels of negative sulfur compounds and other off-flavors.
Use at a rate of 1.5g / gal of wort. Dissolve in a small amount of wort or water and add to your fermenter at pitching.
Community Q&A

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Why did you choose this?
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Wanted an organic yeast nutrient
Justin Z on Oct 22, 2019
you told me to
john l on Oct 16, 2019
Wanted an organic yeast nutrient
Justin Z on Oct 22, 2019
Preferred yeast nutrient during fermentation
John r on Oct 17, 2019
you told me to
john l on Oct 16, 2019
2 lbs lasted me a year ... in that time I learned I made good mead and wine using it.
Gene C on Oct 14, 2019
Because yeast often needs an extra boost to keep on the right track (and to limit fermentation spikes)
Chris G on Oct 9, 2019
Use every option for a good fermentation.
Stan S on Oct 4, 2019
Running out again. Love this stuff.
Brian K on Oct 3, 2019
Used before, works great
Stan S on Sep 30, 2019
Works better for long fermentations that K
Daniel M on Sep 28, 2019
for better fermentation
Houman D on Sep 27, 2019
Have used successfully before.
Thomas H on Sep 27, 2019
Trying new formula over Superfood (go-to nutrient)
Evan W on Sep 27, 2019
Better utilization than DAP at low pH
Timothy D on Sep 26, 2019
Jim G on Sep 26, 2019
Hope to ensure fermentation
John R on Sep 26, 2019
insurance policy for fermentation
Henry S on Sep 23, 2019
once you are ferm, oh my
Thomas S on Sep 23, 2019
It works
Danny L T on Sep 22, 2019
It works well
Douglas P on Sep 21, 2019
you're recommendations
Mike O on Sep 19, 2019
Great product
Eileen G on Sep 17, 2019
Same as above
Terry S on Sep 16, 2019
Feeding yeast during fermentation. No Dap.
Ronald S W on Sep 14, 2019
John D on Sep 6, 2019
previous use
Helge A on Sep 3, 2019
Making mead
Robert G on Sep 2, 2019
kick things off
Blaze B on Sep 2, 2019
no DAP
Marc Freitas on Sep 2, 2019
heard that this helps with the yeast
George S on Aug 30, 2019
works perfect
Corvette285 on Aug 28, 2019
per you book recommendation.
Jim Marinelli on Aug 28, 2019
Phillip S on Aug 28, 2019
To compare with Fermaid K.
Haley H on Aug 28, 2019
as my Yeast nutrient for wine fermentations
Michael G on Aug 28, 2019
Local winery uses this
Spenser E on Aug 28, 2019
Recommended by this site to go with the yeast.
Les H on Aug 28, 2019
Allan S on Aug 28, 2019
had good luck following the manual.
Phillip S on Jul 29, 2019
For TOSNA mead making method
Scott B on Jul 9, 2019
Not trying to have stuck ferments
Kian T on Jul 1, 2019
I follow religiously your manual !
Valentin on May 17, 2019
Mead making
Jacob B on May 8, 2019
used it in the past
michael a on May 8, 2019
making mead
David D on May 3, 2019
this is the best yeast nutrient for the SNA, staggered nutrient addtion
Jeff P on May 1, 2019
Same as for yeast
Jim S on Apr 15, 2019
history of good results
michael a on Apr 10, 2019
thought I'd try
Edwin W S on Mar 25, 2019
Organic nutrient used in mead and wine making.
D A on Mar 14, 2019
Industry Standard
Colton M on Mar 7, 2019
Preferred yeast nutrient during fermentation
John r on Oct 17, 2019
2 lbs lasted me a year ... in that time I learned I made good mead and wine using it.
Gene C on Oct 14, 2019

4.3 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Prefer the K
Fermaid O is much harder to dissolve than Fermaid K. It clumps and sticks to the measuring spoon. The results are fine but this is step down from Frmaid K.
November 8, 2018
1 year ago
Fermaid -o no
Arrived caked and undisolveable , haven’t had that trouble with Fermaid K
October 24, 2018
1 year ago
First time experience
I just used Fermaid O in a batch of Black Raspberry (which I grow) wine. I had a good but not foamy fermentation. Fermented down to SG 0.992. So, based on this one experience, I can recommend it, as it does it's job. Bigger tests for it as the harvest season approaches... Cheers!
August 10, 2018
1 year ago
Fermaid O
Thanks for the fast service! This nutrient did what was supposed to do! thanks!
July 6, 2018
1 year ago
Highly recommended for cleaner faster drinking mead with staggered nutrient additions
February 22, 2018
1 year ago
Working as expected so far
I'm using the Fermaid O as my sole nutrient in the mead. Way to early to judge how it will come out, but it seems to be fermenting as expected.
February 20, 2018
1 year ago
Great product. Does the job, and it’s organically derived.
January 31, 2018
1 year ago
fermaid o 120 g
product as described, fast shipping
January 28, 2018
1 year ago
Major Improved Mead Fermentation
This product has been the biggest improvement in my mead fermentations so far. I first used this with DAP but have recently moved to an all Fermaid O fermentation and my meads have never been this clean tasting so early. I cannot recommend this product enough.
January 24, 2018
1 year ago
Just what the doc ordered
This product does very thing it says it does. I would risk fermenting without it!

August 30, 2017