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Old 09-24-2009, 01:05 AM   #1
EinGutesBier
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Default Old yeast? Vegetable smells? Is my batch ruined?

I just made a partial mash beer as an exercise, since it's been a long time since I brewed last.

Well, I think I'm rusty.

I must have pitched some old, non-viable yeast because after 18 hours, I'm smelling vegetable odors with no activity other than the slightest beginning of kreusen. My solution? I threw in some dry yeast I had sitting around and tossed in some hops in hopes of covering up any off odors.

Am I wasting my time and is my beer ruined? God, it's been years since I've asked that question, but I'm pretty ticked I made such a stupid mistake.

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Old 09-24-2009, 02:35 AM   #2
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Vegetables sounds like DMS, a compound usually driven off by a vigorous boil. Did you have a sufficient boil for an extended period of time? I suppose it could be the yeast, but like I said, usually, DMS=Veggies.

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Old 09-24-2009, 02:36 AM   #3
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I think you're too worried. Let it sit for a few weeks. Some yeast throws off wicked nasty smells.

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Old 09-24-2009, 03:22 AM   #4
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Quote:
Originally Posted by Grizzlybrew View Post
Vegetables sounds like DMS, a compound usually driven off by a vigorous boil. Did you have a sufficient boil for an extended period of time? I suppose it could be the yeast, but like I said, usually, DMS=Veggies.
I boiled it for 75 minutes. In all honesty, though, the boil was somewhere between rolling and, well, not-rolling. It got pretty hot, though. Hotbreak and all that good stuff. I'm pretty convinced it's the yeast, though. Old and probably not enough. Just a stupid mistake, I guess. Problem is, I need this beer ready by the 17th of October. We'll see where it is by then, I suppose.
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