Spike Brewing 12.5 Conical Fermenter Giveaway - Enter Now!

Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Primary Fermentation Time -- Still Churning Away

Reply
 
LinkBack Thread Tools
Old 02-23-2013, 04:48 AM   #1
twowheelmotion
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2013
Posts: 5
Default Primary Fermentation Time -- Still Churning Away

Hey all,

I'm sure this has already been discussed in the forum, but I do not know the correct vocabulary to find it.

The gist of the situation is that my yeast is still churning away after 6 days of fermentation. What I mean by "churning" is that I can still see convection occurring inside the carboy. I am just wondering, is this normal?

I am brewing a pretty big IPA, about 17.5 lbs of grain for a 5.5 gal batch. I started my Wyeast 1056 two days early, in about 2 liters of water with 1 cup DME (boiled and cooled). At 24 hours, I had 2" of foam, and by 36 hours I had blown the air lock and replaced it with a blow off tube.

After two days, fermentation had definitely slowed down. Now there is only about a 1/2 inch of foam. But like I said, there is still a lot of convection and the blow off tube is bubbling every few seconds.

So... does that sound reasonable, or is it infected?

Thanks.

__________________

Last edited by twowheelmotion; 02-25-2013 at 06:01 PM. Reason: Grammar
twowheelmotion is offline
 
Reply With Quote Quick reply to this message
Old 02-23-2013, 04:52 AM   #2
Cbaddad
HBT_SUPPORTER.png
Feedback Score: 3 reviews
Recipes 
 
Join Date: May 2011
Location: Carlsbad, CA
Posts: 551
Liked 105 Times on 73 Posts
Likes Given: 53

Default

it is fine. no worries

__________________
Cbaddad is offline
 
Reply With Quote Quick reply to this message
Old 02-23-2013, 02:00 PM   #3
PhelanKA7
Relax? RELAX?!
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
PhelanKA7's Avatar
Recipes 
 
Join Date: Feb 2010
Location: Indy
Posts: 994
Liked 100 Times on 77 Posts
Likes Given: 202

Default

You realize you can have off gassing long after fermentation has completed right?

__________________
http://beerismypassion.com
PhelanKA7 is offline
 
Reply With Quote Quick reply to this message
Old 02-23-2013, 06:00 PM   #4
Rambleon
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2012
Location: Snohomish, Wa
Posts: 144
Liked 8 Times on 8 Posts
Likes Given: 4

Default

It's doing exactly what it's supposed to. 1056 attenuated really well and will do its best to gobble up all remaining sugars. I've done some really strong brews with it and had crap flying out of the airlock for days. Let it do its thing and take a hydrometer reading in a week to see where you're at.

__________________
Rambleon is offline
 
Reply With Quote Quick reply to this message
Old 02-24-2013, 05:27 AM   #5
twowheelmotion
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2013
Posts: 5
Default

Thanks everyone. I have never seen fermentation stay this active for this long, but then again, I am using a new yeast with a much bigger grain bill than I have used before.

__________________
twowheelmotion is offline
 
Reply With Quote Quick reply to this message
Old 02-25-2013, 06:06 PM   #6
twowheelmotion
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2013
Posts: 5
Default

Quote:
Originally Posted by PhelanKA7 View Post
You realize you can have off gassing long after fermentation has completed right?
@PhelanKA7, there is a lot about brewing I do not realize.

I'm at day 7 now and the air lock is still bubbling away. Interestingly, the yeast has reversed its direction of rotation.

You say that off gassing can last after fermentation. What about the swirling convection activity? Is that an indicator of active fermentation, or might it just be a product of the off gassing?
__________________
twowheelmotion is offline
 
Reply With Quote Quick reply to this message
Old 02-26-2013, 04:32 PM   #7
Rambleon
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2012
Location: Snohomish, Wa
Posts: 144
Liked 8 Times on 8 Posts
Likes Given: 4

Default

The yeast release lots of Co2 during the initial stages of fermentation. The Co2 will actually grab the yeast on its way out and drag it up from the bottom and bounce it around. If you put a raisin in a glass of sprite you can see this happening, too. So all that activity you see is the yeast still releasing the gas because of the sugars they're still enjoying.

__________________
Rambleon is offline
 
Reply With Quote Quick reply to this message
Old 02-26-2013, 04:39 PM   #8
Revvy
Post Hoc Ergo Propter Hoc
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Revvy's Avatar
Recipes 
 
Join Date: Dec 2007
Location: "Detroitish" Michigan
Posts: 40,804
Liked 2728 Times on 1636 Posts
Likes Given: 3485

Default

For one thing, human time is irrevelent to yeast time....they're in charge. It takes as long as it needs to for a beer ferment, and not a moment too soon. Whether it takes 3 days or 3 weeks, then that's how long it takes. If your beer had a 72 hour lagtime which as our sticky shows, then your actual time of fermentation is only 4 days of these 7.

The biggest thing I don't see you mentioning is a gravity reading. If you want to know what's going on then take one. But if your beer's fermenting, it's fermenting. We try to impose time expectations on a natural process out of our hands. The yeast are in charge, not us, and they don't read calendars, they're too busy doing exactly what is in their dna to do, to eat sugar, fart co2 and pee alcohol.

__________________

Like my snazzy new avatar? Get Sons of Zymurgy swag, here, and brew with the best.

Revvy's one of the cool reverends. He has a Harley and a t-shirt that says on the back "If you can read this, the bitch was Raptured. - Madman

I gotta tell ya, just between us girls, that Revvy is HOT. Very tall, gorgeous grey hair and a terrific smile. He's very good looking in person, with a charismatic personality... he drives like a ****ing maniac! - YooperBrew

Revvy is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Primary fermentation churning away (video) GusWatab Fermentation & Yeast 10 01-30-2012 05:52 AM
1.106 OG Primary Fermentation time? Frothymonk Fermentation & Yeast 9 05-25-2011 01:22 AM
Too much time in primary fermentation possible? Grantman1 Fermentation & Yeast 4 11-18-2010 02:22 AM
primary churning! ekjohns Fermentation & Yeast 14 09-21-2009 01:53 AM
Violent Churning during fermentation! Laurel Home Brewing Photo Forum 4 04-17-2008 09:39 PM