Author Topic: Off Smell.  (Read 513 times)

Offline Deadfellow

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Off Smell.
« on: May 03, 2012, 12:08:09 PM »
This is a very generic question, but what can generally cause off smells? I.E Sour, Sulpher Ect...
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Offline morticaixavier

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Re: Off Smell.
« Reply #1 on: May 03, 2012, 01:20:13 PM »
that is a general question!

sour, could be a variety of wild yeasts and/or bacteria., brett, aceto
sulfur is often just from the yeast you are choosing to use but can also be caused by a variety of other organisms. lager type yeasts tend to produce a lot of sulfur during fermentation but usually clean up after themselves.
the vomit/death smell some others have been talking about is from a couple of different kinds of bacteria.
certain soil bacteria can give beer a really wild, garden soil smell, just like if you picked up a hadful of dirt and stuck your nose in it.
funky, barnyardy, leathery, pungent smells can be from brett or pedio.
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Offline mroakley

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Re: Off Smell.
« Reply #2 on: May 03, 2012, 01:23:29 PM »
Here's some info on off flavors and smells.

http://morebeer.com/content/homebrew-off-flavors