CellarScience - AD332B Fermaid O (120 g), 4.2 Ounce (Pack of 1)

Fermaid O is supremely helpful if you brew stuff that isn't nutrient rich for yeast; I brew meads without much else in the recipe so the rather hostile atmosphere can cause a more stressed out yeast. Fermaid O improves the quality of my brew, and the value of that for the money is enough that I won't go without it. Pros: -The standard for organic yeast nutrition -Preferred over inorganic yeast nutrition -I feel it improves the taste and smell of what I ferment Cons: -People get riled up over using it or not Happy yeast make happy ferments; I keep my yeast happy by using Fermaid O.

Since starting to use a couple grams in each fermentation has been more consistent and less worry about stalling. Every batch gets this now.

Kept my yeast happy

This arrived just fine, in a tearable bag inside a resealable bag. I left it on the counter overnight, and my cat destroyed it before I put it away properly. Learn from my mistake and keep this out of reach of your cats when it arrives. Apparently they can smell it through the double bags, unlike me. As to the product itself, I can't say yet. I've used Fermaid K before to great effect, and wanted to try this with TOSNA. The color and consistency is as shown in thr picture, with directions on the bag that support what I've learned elsewhere. In a few months I may know how this works out compared to my other meads, but that will have to wait for my new bag to arrive (which I will protect from the cat!)

Mead is a finicky fermenting drink. Honey and water is notoriously lacking in nutrients that are essential for yeast, including nitrogen and phosphate. As a results, yeast can become stress and output unpleasant flavors and fusel alcohols, which taste like you'd imagine jet fuel to taste like. Fermaid O seeks to remedy this by providing the proper nutrients for happy yeast. A few tips... 1) I add a few grams at yeast pitch into the must. This allows the yeast enough nutrition to get started. 2) For even fermenting and happy yeast, common recommendations are to have a "staggered" nutrient addition schedule. I like to add complementary nutrients -- diammonium phosphate (DAP) and Fermaid K -- at the 24, 48, and 72 hour mark. This, when paired with Fermaid O, allows for steady fermentation and a reduced likelihood of bad or "off" flavors. 3) Fermaid O is a little different than Fermaid K. It is an organic source of nutrients, rather than chemical. Overall, I think Fermaid O is necessary for making top-tier meads. I would recommend it for intermediate mead makers.

I use this for making mead and helping the ferment. The local shops stopped carrying it (and Fermaid K) because folks around my area are more into making beer than wine / mead. So I was happy to find it on Amazon. No issues. Item worked well. I weighed the package and verified the quantity was correct. Would buy again.

Only use this once so far but it was hands-down the most active say violent fermentation I’ve ever seen. Did not impede the taste at all, made happy for very happy Yeast.

This is great for scheduled nutrient adds to keep yeast healthy

Works as it should

If you are big into mead especially with no added fruit this is a must hehe get it? Its cheaper than the small bags which is aparent but it is also good quality. Im saving up to but the $500 shipment from a website but until then this is my go to.