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ballsalsa
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Who knows shit about brewing?
#23622750 - 09/07/16 05:10 PM (7 years, 4 months ago) |
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So, i ran out of yeast for my cider making, and i had a little dry ale yeast and a little champagne yeast left. I threw them both in and brewed a batch from juiced unwashed backyard apples. After a racked and filtered the cider, i started a new batch from the sediment and more apples from the same apple tree. Now it is my understanding, that each time i ferment to dryness and cold crash the yeast, it initiates sexual reproduction. Various brewers yeasts are virtually all specialized Saccharomyces cerevisiae spp., and thus able to freely mate. In addition, there may have been some wild Saccharomyces spp. present on the unwashed apples. I'm on my third batch with this yeast and i wonder if i am breeding my own special strain, or if the yeast will eventually "go wild" after enough generations of sexual reproduction.
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Morel Guy
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Re: Who knows shit about brewing? [Re: ballsalsa]
#23622868 - 09/07/16 05:36 PM (7 years, 4 months ago) |
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Bump. I am curious
-------------------- "in sterquiliniis invenitur in stercore invenitur" In filth it will be found in dung it will be found
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ballsalsa
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Re: Who knows shit about brewing? [Re: Morel Guy]
#23622989 - 09/07/16 05:57 PM (7 years, 4 months ago) |
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it was a good bump, but it seems this thread is headed straight for page 11
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TheSheph
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Re: Who knows shit about brewing? [Re: ballsalsa]
#23623113 - 09/07/16 06:24 PM (7 years, 4 months ago) |
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I love to brew! And that is a great question! Sach is a sexual, so no new yeast variety, but it will be a unique blend of yeast and whatever else might be lurking in there. Overtime the yeast can mutate giving you a unique strain, this is the idea of a "house" yeast at a brewery. Many breweries only reuse a yeast so many times in fear of picking up new off characteristics.
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Adolin




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Re: Who knows shit about brewing? [Re: TheSheph]
#23623122 - 09/07/16 06:27 PM (7 years, 4 months ago) |
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you could use your vagina, like these people
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TheSheph
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Re: Who knows shit about brewing? [Re: Adolin] 2
#23623130 - 09/07/16 06:30 PM (7 years, 4 months ago) |
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Yeah, that was thinking inside of the box!
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ballsalsa
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Re: Who knows shit about brewing? [Re: TheSheph]
#23623139 - 09/07/16 06:32 PM (7 years, 4 months ago) |
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TheSheph
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Re: Who knows shit about brewing? [Re: TheSheph]
#23623143 - 09/07/16 06:33 PM (7 years, 4 months ago) |
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there are a couple of beers with names like beard crumbs, the yeast infection is fo realz people! You better clarify yo shit one way or another, unless you want some probiotics growing in and around yourself.
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TheSheph
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Re: Who knows shit about brewing? [Re: TheSheph]
#23623201 - 09/07/16 06:45 PM (7 years, 4 months ago) |
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Interesting! I guess that makes sense! After further reading the research shows that out-crossing takes place roughly ever 50,000 cell divisions. So with billions of yeast it must happen, but I wonder to what extent that will reach a critical mass without isolation work.
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ballsalsa
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Re: Who knows shit about brewing? [Re: TheSheph]
#23623215 - 09/07/16 06:48 PM (7 years, 4 months ago) |
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after enough generations, the buds produced asexually should go extinct due to senescence and leave me with only sexually derived yeast, no?
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RedSnapper
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Re: Who knows shit about brewing? [Re: TheSheph]
#23623223 - 09/07/16 06:50 PM (7 years, 4 months ago) |
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Cold crashing yeast makes it go dormant. Most yeast falls out of suspension(flocculates) after attenuation(all the sugar is eaten) is reached any how. Reproduction occurs during the initial stage of fermentation.
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TheSheph
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Re: Who knows shit about brewing? [Re: RedSnapper]
#23623272 - 09/07/16 07:04 PM (7 years, 4 months ago) |
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i guess it depends on how much food is available for the yeast, those dead yeast cells are nutritious too.
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TheSheph
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Re: Who knows shit about brewing? [Re: TheSheph]
#23623278 - 09/07/16 07:05 PM (7 years, 4 months ago) |
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If you didn't cold crash the yeast would clean up the wort for a good amount of time
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ballsalsa
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Re: Who knows shit about brewing? [Re: RedSnapper]
#23623341 - 09/07/16 07:24 PM (7 years, 4 months ago) |
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Quote:
RedSnapper said: Cold crashing yeast makes it go dormant. Most yeast falls out of suspension(flocculates) after attenuation(all the sugar is eaten) is reached any how. Reproduction occurs during the initial stage of fermentation.
right, but sporulation occurs when environmental stress like food deprivation is present. The resulting haploid spores undergo sexual reproduction when the environment becomes favorable again. So, when i drain off my cider and add new wort or juice or sugar water or whatever, thats when the magic is happening, no?
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TheSheph
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Re: Who knows shit about brewing? [Re: ballsalsa]
#23623376 - 09/07/16 07:34 PM (7 years, 4 months ago) |
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Yeast will go dormant in the presence of alcohol, the nutrition they need to bud is stored in the cell when they go dormant. So maybe the idea of being in a deprivation of food isn't quite accurate for the situation, especially if you are repitching wort onto the cake. If there were a situation where there were no nutrients for the yeast, the yeast would probably be the nutrients for another organism.
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RedSnapper
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Re: Who knows shit about brewing? [Re: ballsalsa]
#23623591 - 09/07/16 08:30 PM (7 years, 4 months ago) |
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I wouldn't reuse yeast unless I was 100% sure it wasn't contaminated from foreign yeast. If you used unwashed apples, it's definitely contaminated. By using clean ale or champagne yeast it'll be more likely to turn out a drinkable product.
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ballsalsa
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Re: Who knows shit about brewing? [Re: RedSnapper]
#23623664 - 09/07/16 08:52 PM (7 years, 4 months ago) |
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i dig that. that being said, i'm on my 3rd experimental batch and everything has been fine so far. No major off-flavors or anything. My latest batch was made from a mash of bananas and strawberries and it seems to be shaping up just fine so far.
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Morel Guy
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Re: Who knows shit about brewing? [Re: RedSnapper]
#23625068 - 09/08/16 08:30 AM (7 years, 4 months ago) |
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Did he boil the apple juice? I would think yeast did not survive a boil.
-------------------- "in sterquiliniis invenitur in stercore invenitur" In filth it will be found in dung it will be found
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RedSnapper
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Re: Who knows shit about brewing? [Re: Morel Guy]
#23625145 - 09/08/16 09:04 AM (7 years, 4 months ago) |
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I didn't see where he boiled his cider. If you want to kill the residual wild yeasts introduced from the skins, Camden tablets(metasulphate) can be added before pitching yeast for fermentation. These yeast & Camden will drop out of suspension, siphon the cider off the top.
Also, pectin can be removed with pectin enzymes. The pectin will eventually settle out, it doesn't effect flavor but it looks weird and has a weird texture. Dropping the pectin also clears up the finished cider.
It's a few extra steps but it's worth the effort.
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ballsalsa
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Re: Who knows shit about brewing? [Re: RedSnapper]
#23625276 - 09/08/16 10:02 AM (7 years, 4 months ago) |
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i did not boil the juice. i was trying to get some wild yeast all up in there.
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