corny as a primary. how full? - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > corny as a primary. how full?

Reply
 
Thread Tools
Old 03-02-2011, 03:15 AM   #1
madtown
Recipes 
 
Feb 2011
madison, wi
Posts: 6


I'm getting ready to do my first all grain and have been researching a ton. I have my corny and want to use it for my primary. i want to use a QD attached to the "gas in" with a blow off tube. Most threads recommend removing stuff in the QD and on the post before doing this but i cant figure out why? Would it be a big problem if i just left them as is? that way when i'm done with my fermentation i can just hook up co2 without having to mess with putting the post back together and introducing o2 into the corny. Also, most people recommend using ferma cap to control the krausen or not filling the corny up all of the way but is there any harm to just simply filling it full and letting the krausen blow off?

 
Reply With Quote
Old 03-02-2011, 03:42 AM   #2
superjunior
 
superjunior's Avatar
Recipes 
 
Mar 2010
ohio
Posts: 1,252
Liked 11 Times on 11 Posts


Quote:
Originally Posted by madtown View Post
I'm getting ready to do my first all grain and have been researching a ton. I have my corny and want to use it for my primary. i want to use a QD attached to the "gas in" with a blow off tube. Most threads recommend removing stuff in the QD and on the post before doing this but i cant figure out why? Would it be a big problem if i just left them as is? that way when i'm done with my fermentation i can just hook up co2 without having to mess with putting the post back together and introducing o2 into the corny. Also, most people recommend using ferma cap to control the krausen or not filling the corny up all of the way but is there any harm to just simply filling it full and letting the krausen blow off?
never heard of this but than again I've never looked into it either. I can't imagine it would be easy. for one I would think that the poppits inside the post would get clogged in the first day of fermentation, not to mention all the trub and sediment left in the keg that will continue to clog things up. wouldn't it be easier to just ferment in a good old bucket than transfer to the keg? like I said I've never looked into this before so I could be way off here but it just sounds like a headache to me. anyone?

 
Reply With Quote
Old 03-02-2011, 03:52 AM   #3
VoodooManX
 
VoodooManX's Avatar
Recipes 
 
Feb 2011
Sidney, Me
Posts: 101
Liked 2 Times on 2 Posts


Seems like a bad idea to me. Fermenting in your delivery vessel seems like the last thing you would want to do.

Edit: my bad I thought you were talking about fermenting in the corny then simply running the gas to it to serve without any transfer.

 
Reply With Quote
Old 03-02-2011, 01:00 PM   #4
KevinM
Recipes 
 
Sep 2010
Ann Arbor, Michigan
Posts: 1,171
Liked 20 Times on 20 Posts


It seems lots of people do it, I'm trying it out. There are two recommended methods, either using an airlock on the relief valve, or more than likely, removing the gas tube and poppit, leaving the rest of the connector in place and attaching a ball lock and blowoff tube there. There's pictures and threads somewhere.

You can then transfer to another keg via keg-to-keg transfer for extra aging or dispensing. People like the closed sytem, and possibly the pressurized fermentation system.

 
Reply With Quote
Old 03-02-2011, 01:22 PM   #5
astropunk
Recipes 
 
Feb 2011
Peoria, IL
Posts: 197
Liked 10 Times on 6 Posts


In my opinion, people who use a corny as a primary do so using a dedicated vessel. I would remove the poppet and post and replace with a blowoff tube. Even then I think you run a slight risk of a clog if you overfill. You will also want to bend or shorten the dip tube, so it does not suck up the trub when transferring it to the serving container. I personally would not use the fermenting keg to serve from, but that is your choice.
__________________
“Here's to a long life, and a merry one;
a quick death, and an easy one;
a pretty girl, and an honest one;
a cold beer - and another one!”

 
Reply With Quote
Old 03-02-2011, 02:53 PM   #6
KevinM
Recipes 
 
Sep 2010
Ann Arbor, Michigan
Posts: 1,171
Liked 20 Times on 20 Posts


I didn't even answer the question from the post.... Ok, the reason why the poppit is removed seems to be related to the fact that it can clog up more easily when the poppit is there.
There are various options including bending, shortening the tube or possibly adding a racking cane tip to the end of the dip tube.
As for just letting krausen just blow off vs fermcap, I think we're apt to worry about the blowoff actually clogging anything and building up too much pressure, including clogging the relief valve. Mostly because the kegs are built to hold more pressure than a carboy so the explosion would be more intense.

 
Reply With Quote
Old 03-02-2011, 03:06 PM   #7
conpewter
HBT_SUPPORTER.png
 
conpewter's Avatar
Recipes 
 
Nov 2007
East Dundee, Illinois
Posts: 5,109
Liked 53 Times on 48 Posts


When I ferment in a corny I use some of the defoamer and just use an airlock. I use a small piece of silicone tubing to fit over the nub where the post goes, and onto the airlock. Worked great for me in the past, but switched back to 6.5 gallon carboys so I could get a full 5 gallons in the corny. In the past I've only put 4.5 gal in the corny to leave a bit of headspace.
__________________
"People should not be afraid of their governments. Governments should be afraid of their people." - V

Primary: Nothin
Secondary: Shady Lord RIS, Water to Barleywine, Pumpkin wine, burnt mead
Kegged: Crappy infected mild
Bottles: Apfelwein, 999 Barleywine, Oatmeal Stout, Robust Porter, Robust smoked porter, Simcoe Smash

 
Reply With Quote
Old 03-02-2011, 03:17 PM   #8
madtown
Recipes 
 
Feb 2011
madison, wi
Posts: 6

i was thinking of not doing anything to the dip tube and just wasting the beer until it ran clear, most posts stated that if you cold crash for a few days to compact the yeast cake you'll end up wasting about a pint of beer before it clears, no real need to transfer to a second vessel. so i guess my real guestion is, if i just take off the "gas in" post and hook up a blow tube can i fill my corny up all of the way? How much beer will i lose to "blow off" if done this way?

 
Reply With Quote
Old 03-02-2011, 03:35 PM   #9
Golddiggie
HBT_SUPPORTER.png
 
Golddiggie's Avatar
Recipes 
 
Dec 2010
Posts: 11,995
Liked 496 Times on 431 Posts


I'm fermenting in a corny right now. We added fermcap-s to the boil (10 gallon batch) and I filled my corny as high as I thought was going to be safe (and then added a little more)... Nothing has come through the airlock other than excess CO2...

When I picked up the corny from the LHBS, and told him I wanted to ferment/age in it, he gave me the options for using it that way. We removed the pin style release valve from the lid, so that I can install an airlock there. Next time I get another corny for fermenting, I'll not remove the relief valve, but get tubing to go over the lock valve for an airlock. That way, I'll have more option for using the keg later. That way, I can have it sealed, hit it with some gas to make sure the lid is seated fully, then release the gas, and install the airlock.

My only semi-concern is standing stability of the corny compared with a carboy. I might look to either make, or buy, something that will give it a slightly wider base for when I'm fermenting in it, and there's an airlock on it. At least, when it's not close enough to other things to keep it from being knocked over. Although it would take a decent amount of effort, and carelessness, to tip it over.

Of course, I did remove the dip tube from the keg, installing another gas tube in it's place, replacing the o-rings on both posts.

So far, I would say that if you use fermcap-s with the corny, need for a blow-off tube is eliminated. Just install an airlock either on one of the posts (pull the dip tube so you have more room for wort ) and let it ferment.

I do, kind-of, miss not being able to see what's going on inside the primary, but I'll get over it. Knowing that I'm fermenting in a completely light tight vessel is worth it. I know that the plastic buckets are not 100% light tight, the corny is.

BTW, I'm using a 5 gallon corny here... We split the batch from Saturday so we can each ferment it at our own place. We do plan on a bottle swap once finished, to see if they are the same or not. The only difference should be the fermentation temperatures. Everything else is identical.
__________________
Hopping Tango Brewery

跟猴子比丟屎 ・ Gun HOE-tze bee DIO-se

On Tap: Caramel Ale, Mocha Porter II, MO SMaSH IPA
Waiting/Carbonating: 12.5% Wee Honey II, 8.9% Old Ale, English Brown Ale, Lickah ESB, Mocha Porter II
Fermenting
K1:
K2: Epic mead
K3: TripSix
On Deck: Caramel Ale
Aging:mead
Mead [bottled]:Oaked Wildflower Traditional, Mocha Madness, Blackberry Melomel, maple wine

 
Reply With Quote
Old 03-02-2011, 03:48 PM   #10
samc
Recipes 
 
Aug 2008
Portland OR
Posts: 5,387
Liked 63 Times on 59 Posts


I use 15 gallon corny so it eliminates head space issues. I simply remove gas out post and push a piece of silicone tubing over the stub end with an airlock attached. After ferment/cold crash, post goes back on an CO2 transfer to serving keg.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Primary Bucket - Ok for extended primary fermentation? GonzoIllini Beginners Beer Brewing Forum 13 10-26-2011 02:08 AM
Primary airlock still bubbling after 10 full days, is this normal? earwig Beginners Beer Brewing Forum 8 03-17-2010 06:46 AM
Primary & secondary versus only primary Riever Beginners Beer Brewing Forum 6 10-07-2009 08:49 PM
Glass primary vs. Plastic Primary asterix404 Beginners Beer Brewing Forum 7 04-03-2009 03:15 AM
Bucket Primary VS Carboy Primary? underwaterdan Beginners Beer Brewing Forum 11 01-30-2009 02:46 AM


Forum Jump