Spontaneous RE-fermentation? - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Spontaneous RE-fermentation?

Thread Tools
Old 10-20-2013, 08:30 PM   #1
MedicMang's Avatar
Nov 2011
Athens, Ohio
Posts: 1,651
Liked 192 Times on 139 Posts

I will admit, I have been putting this beer off slightly. I have a stout that has been in promise for about a month. All bubbling had ceased about a week ago and the krauzen had completely fallen out. I came home from work this morning and heard bloop bloop bloop, which I usually love to hear. Come to find out, I have a light layer of co2 foam on top and the airlock has a constant 3 second bubble.

I haven't taken a gravity sample since I pitched the yeast, but I would imagine it is hit its FG. It actually hasn't been opened since the pitch,so I am not thinking infection.

Just curious what others think. Happen to anyone else? Should I be worried? I was planning on bottling soon. I'm guessing I now need to wait longer and make sure my gravity isn't continuously dropping so they don't blow up.

Reply With Quote
Old 10-20-2013, 11:11 PM   #2
Jul 2013
Albuquerque, NM
Posts: 214
Liked 28 Times on 23 Posts

Has it warmed up at all? It could be off-gassing absorbed co2.

Reply With Quote
Old 10-20-2013, 11:16 PM   #3
Dec 2011
Temecula, California
Posts: 588
Liked 38 Times on 35 Posts

I was actually just talking to the LHBS owner about this...this is normally caused by a wild yeast/bacteria getting in your beer and fermenting down lower than what the yeast you used should go. might still be tasty, but this is what I believe it to be.

Reply With Quote
Old 10-21-2013, 12:37 AM   #4
Jul 2010
Portland, OR
Posts: 1,655
Liked 185 Times on 171 Posts

With no information on your beer it could be anything. Bubbles are just off gassing- could be cold fermentor warming up, continued fermentation that slowed for a while, infection. Not opening is no guarantee of no infection. Only way to tell is take a gravity reading, taste it, and take another in a few days to see if it is changing. When at final gravity, bottle and see how it turns out.

Reply With Quote
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Spontaneous Fermentation Bamsdealer Fermentation & Yeast 1 09-01-2013 01:57 PM
spontaneous fermentation ForsythBrewery Beginners Beer Brewing Forum 10 05-01-2012 03:20 AM
spontaneous fermentation BehrBrews Lambic & Wild Brewing 1 08-17-2010 01:22 PM
spontaneous fermentation?!? [email protected] Fermentation & Yeast 6 07-28-2010 03:38 PM
Spontaneous Fermentation? edgewoodbrewery Lambic & Wild Brewing 14 04-21-2009 11:52 PM

Forum Jump