Home Brew Forums > Home Brewing Beer > General Beer Discussion > Beer seems to start fermenting again
Reply
 
Thread Tools
Old 06-06-2009, 06:11 PM   #1
f4an
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2009
Location: Dayton, OH
Posts: 23
Liked 1 Times on 1 Posts

Default Beer seems to start fermenting again

I have had my batch of beer in primary for two weeks. Fermentation started great a was done with in the first week. I went to check on it a week later, day before bottling, and there was airlock activity. I took of the top to take a hydrometer reading and there was bubbling foam on the top of the beer. Any one ever heard of beer starting to ferment again? I took a hydrometer reading and it has not changed in the week. Should I proceed to bottling? Or wait. I thought there might have been contamination but the beer tastes fine, maybe a little sweet. It smells almost like pineapple juice, is the best I could describe it.


f4an is offline
 
Reply With Quote
Old 06-06-2009, 07:51 PM   #2
Stevorino
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2008
Location: Alpharetta, GA
Posts: 939
Liked 2 Times on 2 Posts

Default

If it's a little sweet -- that makes me think it's got more to go. The more fermented it is, typically the dryer (less sweet), it should taste. The pineapple juice is throwing me off-- could be citrus hops.

Do you have gravity readings?

To answer the principles behind the question though: yes, this it is very possible that fermentation stalled and restarted. This is usually caused by a temperature drop/rise outside of the range that the yeast can handle so they shut down, when the temperature gets back to their comfort zone again, they come out of "hibernation"


__________________
-Stevorino-_________________________________________
In Keezer:
1. BCS - Wet Hopped West Coast Blaster
2. CYBI - Gordon's IPA Clone
3. BCS - Scottish -80
4. BCS - Specialty Saison (Gold Medal at BMO)
In Process:
1. BCS - Janet's Brown Ale (Fermenting)
Stevorino is offline
 
Reply With Quote
Old 06-06-2009, 08:21 PM   #3
f4an
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2009
Location: Dayton, OH
Posts: 23
Liked 1 Times on 1 Posts

Default

Yes my hydrometer reading is 1.012. The recipe I purchased said the fg should be between 1.011 and 1.014. The temperature has stayed between 70 and 75 degrees. The hops I used were cascade.
f4an is offline
 
Reply With Quote
Old 06-07-2009, 03:44 AM   #4
Stevorino
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2008
Location: Alpharetta, GA
Posts: 939
Liked 2 Times on 2 Posts

Default

hmmm, Well, I've never had a full out infection myself -- hopefully that's not the case here....it'd be one badass infection if it was brewing a krausen.

Because you are bottling, you really don't have a choice -- you need to wait until whatever is going on in there is over. If you were to put that stuff in bottles, you could have potential bottle bombs.

If it is 1.012 and your terminal gravity was supposed to be 1.011, it's possible that it may just be cleaning up that last few bits.

If it were me, I'd let it sit another week and take a peek every day to see what's going on. After a week the fermentables will have to be exhausted (or your hydrometer is busted). Then I would taste it to see if it had soured or gone nasty from wild yeast -- if not, you are good to bottle. If it is nasty, time to dump it. Unfortunately, in a situation like this, your only option is patience.
__________________
-Stevorino-_________________________________________
In Keezer:
1. BCS - Wet Hopped West Coast Blaster
2. CYBI - Gordon's IPA Clone
3. BCS - Scottish -80
4. BCS - Specialty Saison (Gold Medal at BMO)
In Process:
1. BCS - Janet's Brown Ale (Fermenting)
Stevorino is offline
 
Reply With Quote
Old 06-07-2009, 12:41 PM   #5
f4an
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2009
Location: Dayton, OH
Posts: 23
Liked 1 Times on 1 Posts

Default

That's what I was thinking. I was thinking about kegging instead of bottling.
f4an is offline
 
Reply With Quote
Old 06-07-2009, 12:55 PM   #6
Stevorino
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2008
Location: Alpharetta, GA
Posts: 939
Liked 2 Times on 2 Posts

Default

Quote:
Originally Posted by f4an View Post
That's what I was thinking. I was thinking about kegging instead of bottling.
If you were keg it, I'd still probably recommend waiting to see what was happening. But if you thought that it was a fluke, you wouldn't have the risk of bottle bombs to worry about.

The one other option you could look into is running to the LHBS and picking up some critters and make it a sour beer and hope the critters you introduce beat out the wild yeast. I still like the original plan of just waiting it out though -- if it is infected, look at your process and see how it could've happened.
__________________
-Stevorino-_________________________________________
In Keezer:
1. BCS - Wet Hopped West Coast Blaster
2. CYBI - Gordon's IPA Clone
3. BCS - Scottish -80
4. BCS - Specialty Saison (Gold Medal at BMO)
In Process:
1. BCS - Janet's Brown Ale (Fermenting)
Stevorino is offline
 
Reply With Quote
Old 06-07-2009, 08:40 PM   #7
f4an
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2009
Location: Dayton, OH
Posts: 23
Liked 1 Times on 1 Posts

Default

i tasted some today and it tastes fine. No more activity. Not too sure. Just going to proceed tomorrow as if it went as normal. It is my first all grain batch. Maybe the hops had to settle out a little more and the yeast started again?? Thanks for your help.
f4an is offline
 
Reply With Quote
Old 06-07-2009, 09:13 PM   #8
Catt22
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2009
Posts: 5,000
Liked 62 Times on 59 Posts
Likes Given: 51

Default

Quote:
Originally Posted by f4an View Post
I have had my batch of beer in primary for two weeks. Fermentation started great a was done with in the first week. I went to check on it a week later, day before bottling, and there was airlock activity. I took of the top to take a hydrometer reading and there was bubbling foam on the top of the beer. Any one ever heard of beer starting to ferment again? I took a hydrometer reading and it has not changed in the week. Should I proceed to bottling? Or wait. I thought there might have been contamination but the beer tastes fine, maybe a little sweet. It smells almost like pineapple juice, is the best I could describe it.
What you are observing is probably just some of the residual dissolved CO2 coming out of solution due to a slight temperature change or other disturbance. This is very common when racking the beer to a secondary. You put the airlock back on and it starts bubbling again even long after it has finished out. No change in the hydrometer reading indicates that it's done. I say go ahead and bottle it up immediately. You're worrying too much and you know what that can lead to!


Catt22 is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
When does the fermenting clock start? haighter Beginners Beer Brewing Forum 2 10-12-2009 02:29 AM
Cider won't start fermenting Skarredmind Cider Forum 9 05-11-2009 09:52 PM
Will my beer ever start fermenting? areinhard Beginners Beer Brewing Forum 3 01-23-2009 01:33 PM
Why did this start fermenting now? Oreoman64 Beginners Beer Brewing Forum 3 07-09-2008 06:04 AM
How long to start fermenting? mrdave3000 Cider Forum 12 10-30-2007 11:37 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS