Kegconnection Complete Starter Kit and More Giveaway!


Home Brew Forums > Home Brewing Beer > General Beer Discussion > Fermenting in a corny keg

Reply
 
LinkBack Thread Tools
Old 11-12-2009, 12:30 AM   #1
Noleafclover
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2009
Location: Nebraska
Posts: 205
Default Fermenting in a corny keg

So here is the back story real quick....

I brewed 10 gallons of an english pale ale and split it off to two carboys. I used a different yeast strain in each to see how they'd affect flavor. I've developed some lazy habits but almost always make a starter when using liquid yeast.

This time I didn't... With one strain of yeast I had a nice kreusen in a day. The other one took nearly 48 hours to show signs of kreusen.

I let em both go 21 days in the carboy. I racked the one with the slower moving yeast to a keg after letting it sit. It never had very vigorous fermentation but did get a somewhat normal looking kreusen.

So... because I've let myself become a lazy homebrewer I didn't even bother to check gravity before I went into a corny keg. I put it in the kegerator. I tried it a couple of days later, and to my surprise, I was drinking a cup of cold wort (which was quite good, btw...)

I took a gravity reading and lo and behold, 1.049 at about 45 degrees.

I ended up rehydrating a pack of us05 and pitching it last Saturday. I figured I would just use the "out" valve to blow off the CO2 occasionally and have since been sprayed in the face by the beer a few times.... The lid to this particular corny doesn't have one of those key ring pressure valve - it has some sort of automated thing that goes off at a certain pressure.

In any case, this isn't my normal practice but I thought it would be an interesting experiment. I should have picked one with a normal pressure relief valve though.

__________________
Noleafclover is offline
 
Reply With Quote Quick reply to this message
Old 11-12-2009, 08:40 AM   #2
killian
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2007
Location: western/central new york
Posts: 1,485
Liked 2 Times on 2 Posts
Likes Given: 4

Default

I think you want to hook up your blow off to the gas in.

__________________

damn I gotta brew something

killian is offline
 
Reply With Quote Quick reply to this message
Old 11-12-2009, 03:00 PM   #3
SowegaBrews
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2009
Location: Knoxville, TN
Posts: 202
Liked 5 Times on 5 Posts

Default

Quote:
Originally Posted by killian View Post
I think you want to hook up your blow off to the gas in.
+1 to this... clogging could be bad especially if you have no pressure releif valve. If it happened to clog so bad that you had no way to relieve the pressure... you might end up having to drill a hole or something just to get the lid open.
__________________
SowegaBrews is offline
 
Reply With Quote Quick reply to this message
Old 11-12-2009, 03:26 PM   #4
mattjmac
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2009
Location: Elburn, IL
Posts: 216
Liked 1 Times on 1 Posts

Default

Quote:
Originally Posted by SowegaBrews View Post
+1 to this... clogging could be bad especially if you have no pressure releif valve. If it happened to clog so bad that you had no way to relieve the pressure... you might end up having to drill a hole or something just to get the lid open.
I think if the pressure relief valve clogged you could always SLOWLY unscrew one of the posts. That would relieve the pressure (and probably spray you with a bunch of krausen/wort)

I think the idea of hooking a blow-off tube up to one of the removed posts is a good idea. I can't see how this is a good idea as standard practice, though. Unless you just need a fermentation vessel. I don't think you could rack from the fermentation keg to another keg using the liquid out tube because it would take all the trub from the bottom of the keg with it to the final keg.
__________________
mattjmac is offline
 
Reply With Quote Quick reply to this message
Old 11-12-2009, 03:36 PM   #5
Hugh_Jass
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2008
Posts: 1,961
Liked 28 Times on 27 Posts
Likes Given: 15

Default

Quote:
Originally Posted by mattjmac View Post
I think if the pressure relief valve clogged you could always SLOWLY unscrew one of the posts. That would relieve the pressure (and probably spray you with a bunch of krausen/wort)

I think the idea of hooking a blow-off tube up to one of the removed posts is a good idea. I can't see how this is a good idea as standard practice, though. Unless you just need a fermentation vessel. I don't think you could rack from the fermentation keg to another keg using the liquid out tube because it would take all the trub from the bottom of the keg with it to the final keg.
I have fermented 30 gallon in Cornys. I just bent the dip tube up and used a gas qd with plastic tubing as a blow off. when I rack, I purge the receiving keg with co2, hook an "out" to "out" jumper between the donor and receiver kegs, and slightly pressurize the donor keg. Here's a link with some pics.
__________________
Quote:
"My new company is going to sell Aqua-infused(tm), Alphabetamashed(tm), Wortboiled(tm), Multihops Brewed(tm), Saccharomented(tm), Lageriffic(tm) beer. - Bobby_M
Pigs are fantastic creatures. They convert vegetables into bacon.
Hugh_Jass is offline
 
Reply With Quote Quick reply to this message
Old 11-12-2009, 04:11 PM   #6
DKershner
Feedback Score: 1 reviews
Recipes 
 
Join Date: Jul 2009
Location: Bend, OR
Posts: 1,870
Liked 25 Times on 21 Posts

Default

I sold all my carboys and just ferment in cornys now too, it works great.

But like the others said, use the "In" as your blowoff, or else you are just making a fermentation-powered siphon. You are actually quite lucky you have that pressure relief valve, or you would probably have an empty keg and a wet floor.

Oh, and I do it differently than hughjass. I actually remove the "In" post and hook a 1/2" tube directly to the threads. It's cheaper and allows a bigger diameter blow-off, but is less convenient and slower to transfer if you want to pressure transfer.


Last edited by DKershner; 11-12-2009 at 04:14 PM.
DKershner is offline
 
Reply With Quote Quick reply to this message
Old 11-12-2009, 08:22 PM   #7
mb2696
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2009
Location: charlottesville, va
Posts: 437
Liked 4 Times on 4 Posts
Likes Given: 3

Default

Quote:
Originally Posted by dkershner View Post
I sold all my carboys and just ferment in cornys now too, it works great.

But like the others said, use the "In" as your blowoff, or else you are just making a fermentation-powered siphon. You are actually quite lucky you have that pressure relief valve, or you would probably have an empty keg and a wet floor.

Oh, and I do it differently than hughjass. I actually remove the "In" post and hook a 1/2" tube directly to the threads. It's cheaper and allows a bigger diameter blow-off, but is less convenient and slower to transfer if you want to pressure transfer.
I just started doing the same thing...I just worm clamp a 1/2" i.d. hose to the IN threads, and leave the out post as is. I don't transfer under pressure though, I just siphon.

__________________
mb2696 is offline
 
Reply With Quote Quick reply to this message
Old 11-12-2009, 08:32 PM   #8
Boerderij_Kabouter
Feedback Score: 0 reviews
 
Boerderij_Kabouter's Avatar
Recipes 
 
Join Date: Dec 2007
Location: Oconomowoc, Wisconsin
Posts: 8,461
Liked 115 Times on 100 Posts
Likes Given: 11

Default

Could you use one of these for transferring:



Because that would be slick and easy.

__________________
2P-Twent-E Simple Brew DITCHES 1 DITCHES 2 Fermentolagertaporator side-by-side ferm Twelve Hopostles Labels
Boerderij_Kabouter is offline
 
Reply With Quote Quick reply to this message
Old 11-13-2009, 11:44 AM   #9
SpanishCastleAle
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2009
Location: Central Florida
Posts: 4,384
Liked 29 Times on 29 Posts

Default

Or what you could do is let it ferment until it gets close to FG (about right after the krausen falls) then seal the keg and let it naturally carbonate in the keg. Then chill and transfer to another keg (liquid post to liquid post). I would attach a gage to a gas IN QD and put that on the IN post so you can monitor the pressure and vent it if necessary.

__________________
Early brewers were primarily women, mostly because it was deemed a woman's job. Mesopotamian men, of some 3,800 years ago, were obviously complete assclowns and had yet to realize the pleasure of brewing beer.- Beer Advocate
SpanishCastleAle 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 Fermenting in a Corny Keg Hugh_Jass General Techniques 192 10-25-2013 07:55 AM
Attenuation question - fermenting in corny Hugh_Jass Fermentation & Yeast 28 11-24-2012 02:48 PM
Fermenting in a corny Ryan_PA Equipment/Sanitation 11 08-05-2011 02:06 PM
Fermenting in a Corny? Ego Archive Wine Making Forum 6 09-27-2008 03:46 PM
corny keg help beerman6 Bottling/Kegging 3 01-28-2007 01:03 PM