• 8 Posts
  • 75 Comments
Joined 1 year ago
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Cake day: June 20th, 2023

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  • I would say the reason something like TOSNA goes against the manufacturer’s directions is because the manufacturer just provide a “generic” usage recommendation (e.g. 1.5g per gallon or 1/2 tsp per gallon) when they amount you use should absolutely be customized to the batch you are making. I would argue that the most important part of TOSNA isn’t the fact that the nitrogen sources are “Organic” (although I do firmly believe that organic nitrogen sources (i.e from dead yeast cells) that do not contain DAP lead to fewer temperature spikes from rapid fermentation and therefore produce far fewer fusel alcohols and therefore require less aging time to “mellow”), but that it is the fact that it is a “Tailored” protocol, taking into consideration not only the total volume of must, but the gravity of that must, the nitrogen requirements of the yeast being used for the fermentation, whether there is fruit being added which would reduce the extraneous nitrogen required to be added for healthy fermentation etc.


  • I would guess YAN is more important because what’s the point of having free nitrogen if the yeast can’t actually utilise it.

    I’ve never done experiments between SNA and front loading all the nutrients. I don’t find the staggered additions difficult to do or a burden and I’m typically degassing/oxygenating anyway for the first few days. Plus it gives me an opportunity to take samples and see how fermentation is progressing.

    Sure it’s technically more work than the one and done method of front loading but not enough of an added burden that it’s too much effort to bother.


  • I don’t often use nutrients when I’m brewing beer unless I’m making a big beer (>8% A.B.V.) and I want to ensure a nice healthy fermentation. I do however use nutrients every single time I make cider/wine/mead since the fermentables here do not provide enough FAN (Free Amino Nitrogen) and so without them fermentation is sluggish, throws off a ton of sulfur and often requires a long conditioning/aging time to get to a point where I would want to drink it.

    As for the actual nutrients I use, for beers I will use Wyeast Beer Nutrient Blend and for mead I rehydrate dry yeast with Go-Ferm and do a Staggered Nutrient Addition of Fermaid O over the first 4 days of fermentation along with oxygenating/degassing with pure O2 through a sintered stone.










  • I have fixed up several different kinds of kegs over the years and whilst I can’t say for certain I have seen these posts (need more pictures to better ascertain) I would be surprised if they are limiting the flow of CO2 into the keg. I do find that sometimes these kinds of post poppets (where they are held in place in the keg post by 3 feet) can be stiffer than the universal kind (which comprise of just the poppet and a spring and aren’t held in place by anything) which can require some more fiddly placement of the quick disconnects. A cheaper fix for the posts would be to swap out the poppets for the universal kind (which retail around $2 USD as opposed to new posts which are more in the $15-$20 range USD).

    When you say you have tried everything else, can you describe your carbonating process and the things you have tried?