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Old 01-22-2013, 11:14 PM   #1
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Default Trub stored in a jar for 3 months, still good?

Didn't get around to washing the yeast in this jar. It formed a brownish gray layer on top, think it's still any good? I'm not sure if I'll use it.



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Old 01-22-2013, 11:16 PM   #2
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What kind of yeast is it? I think it'd be worth a couple bucks in DME to do a starter and see what kind of viabiility you get.


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Old 01-22-2013, 11:23 PM   #3
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What kind of yeast is it? I think it'd be worth a couple bucks in DME to do a starter and see what kind of viabiility you get.
Wyeast 1275 Thames Valley, harvested from a 1.039 ordinary bitter. I think I'll dump that top layer and draw from the yeast/trub below. I can see some white yeast in there, and there's surely more mixed in with the trub.
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Old 01-22-2013, 11:25 PM   #4
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Wyeast 1275 Thames Valley, harvested from a 1.039 ordinary bitter. I think I'll dump that top layer and draw from the yeast/trub below. I can see some white yeast in there, and there's surely more mixed in with the trub.
I'd give it the sniff test first. I had a jar that looked like that, and when I opened it and sniffed, the aroma was a sour fecal odor. That definitely answered my question!
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Old 01-22-2013, 11:30 PM   #5
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I'd give it the sniff test first. I had a jar that looked like that, and when I opened it and sniffed, the aroma was a sour fecal odor. That definitely answered my question!
Smells like beer with a hint of that 'old beer' smell you sometimes notice in a bar. Maybe a little bready. Nothing too strange.

I smelled it after pouring off the gray layer and it smells more like I'd expect a jar of yeast to smell now.

I'd never seen that gray layer so it weirded me out. I think I'll put it on the stir plate and pop an airlock on it periodically to see if it's growing.
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Old 01-22-2013, 11:59 PM   #6
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FWIW, you've described my standard operation with yeast. I've only "washed" yeast a few times. I always make a starter, however, so I know the yeast is still kicking. So far, nothing but tasty beer

I've actually gone as long as 6 months storage, but I brew enough that mostly the re-use is less than a month.
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Old 01-23-2013, 12:00 AM   #7
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FWIW, you've described my standard operation with yeast. I've only "washed" yeast a few times. I always make a starter, however, so I know the yeast is still kicking. So far, nothing but tasty beer

I've actually gone as long as 6 months storage, but I brew enough that mostly the re-use is less than a month.
That's good to hear. I figure it'll work fine, but that gray layer is weird. Do you normally see that?
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Old 01-23-2013, 12:13 AM   #8
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I'd give it the sniff test first. I had a jar that looked like that, and when I opened it and sniffed, the aroma was a
sour fecal odor. That definitely answered my question!
It wasn't a SWEET Fecal Odor ? LOL

Sorry, I just hada ask .
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Old 01-23-2013, 11:25 AM   #9
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There's almost always a different colored layer--sometimes on the bottom but usually on top like yours. Just for reference--so you know it's not just me saying "My beer is gud, I swear"--I've gotten scores in the upper 30s and even a couple of 40-41s with this yeast procedure.
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Old 01-23-2013, 03:35 PM   #10
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There's almost always a different colored layer--sometimes on the bottom but usually on top like yours. Just for reference--so you know it's not just me saying "My beer is gud, I swear"--I've gotten scores in the upper 30s and even a couple of 40-41s with this yeast procedure.
Alrightie nice.

So I poured off the wort/upper gray layer and poured about 1/4 of the rest of the material into a 1L starter on a stirplate. Most of what I think is the yeast layer is in there, along with a decent amount of trub and a little bit of that gray crap. I put an airlock on it for a few minutes and there was bubbling, all seems well.



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