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Old 09-03-2012, 06:27 PM   #1
socalbrewer1796
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Jun 2012
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Ya very early in the fermentation but I opened my chocolate stout and it's has a w
Rotten vegi smell. I was very sanitary like usual. Do stout have this horrible smell at first

 
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Old 09-03-2012, 07:14 PM   #2
heckels
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Quote:
Originally Posted by socalbrewer1796
Ya very early in the fermentation but I opened my chocolate stout and it's has a w
Rotten vegi smell. I was very sanitary like usual. Do stout have this horrible smell at first
What yeast did you use? Some yeast "farts" can be pretty foul smelling early on. Likely nothing to worry about.

 
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Old 09-03-2012, 07:21 PM   #3
RM-MN
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It depends on the yeast and the temperature you ferment at. While it could be an infection, it isn't very likely.

 
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Old 09-03-2012, 09:12 PM   #4
socalbrewer1796
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I used wlp001 California ale yeast. I'm fermenting at 70 in a fridge. I also added coffee to the mash

 
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Old 09-04-2012, 05:07 AM   #5
helibrewer
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Sounds like DMS, was this an all grain batch?
http://www.aroxa.com/dimethyl-disulphide/
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Old 09-04-2012, 02:17 PM   #6
socalbrewer1796
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Yes it was an all grain. What should I do to fix it or is there anything I can do

 
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Old 09-05-2012, 06:59 PM   #7
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Fermentation is nasty and funktacular. Not sometimes, most of the time. If your beer didn't smell and look funky early on in fermentation, I'd worry. From what you have described everything is normal EXCEPT for the fact that you need to leave it alone and stop opening the fermentor to check on it....that is more likely to mess up your beer than the awesome funkitude you are describing. LET IT DO IT'S THING!!!
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Old 09-06-2012, 02:39 AM   #8
billl
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+1 to nothing good coming from opening a fermenter

Rotten veggie smell is DMS. The most common cause is not boiling vigorously or covering the pot while boiling. You can also get some from not cooling the wort quickly or an infection.

On the plus side, a strong fermentation will drive off remaining DMS. That is what you are smelling. The CO2 is driving the DMS out of solution and it is drifted off into the room. If it is in the room, it isn't in your beer - so that is good thing.

 
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