NeverDie
Well-Known Member
This has all been on your nickel, so you should be making a list of what it is that you had hoped to discover. Your criteria might be different than someone else's.
You're making what's called a traditional mead - honey, water, and yeast. What you're going to end up with will be dry and probably a bit tart and acidic. It takes a trained palette to discern the often subtle differences that the yeasts contributed to the final result. This is all about sensory perception, and I'm guessing that you're as clueless as I am about being able to quantify that. (I hope I'm wrong here). It's also a function of the honey, and how each yeast contributed or detracted from the honey's character.
I guess that on a gross scale, you'll be able to tell if each yeast was at least successful. Final gravity, H2S production, flocculation... what else? But can you identify "esters"? I had to Google that to even know what they are.
My understanding is that esters are the aromas contributed by the yeast that give the yeast strain its distinctive character. So, for instance, it's already clear that the Belle Saison has peppery and maybe even olive esters, which is very different from the other yeasts, some of which contribute citrus aromas. I guess the so-called "neutral" yeasts are ones which don't contribute any distinctive aromas. For each batch, I'll make notes of what aromas I detect.
Fusels are different and undesirable. My understanding is that they are what would make the mead feel "hot" in the mouth. If present in high amounts they might even make the mead taste or smell like paint thinner. Because I'm fermenting at room temperature, I expect fusels will be the primary failure mode that I'll encounter. In addition to temperature, I get the impression that a lack of nutrients (or basically anything that stresses the yeast) may be a cause of fusels. This is where it gets a bit ambiguous, because how will I know that it isn't, say, a lack of adequate nutrients that caused the failure instead of merely temperature? Well, I probably won't know, and so I may end up disqualifying some yeast for the wrong reason. However, I'm hoping I will have enough non-failure batches from other yeasts that it won't matter.
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