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Old 03-29-2011, 11:04 PM   #1
Mar 2011
mentor, ohio
Posts: 3

Using a 5 gallon corny keg as fermenting vessel rather than a carboy, any thoughts?

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Old 03-29-2011, 11:07 PM   #2
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MalFet's Avatar
May 2010
NYC / Kathmandu
Posts: 8,632
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If you search for "fermenting in corny" on this forum, you'll get plenty of people describing their experience. You'll end up needing to make a smaller batch and you'll need to get a air valve/lock on there, but they work fine and dandy.

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Old 03-29-2011, 11:17 PM   #3
boo boo
Jun 2005
Hearts's Delight, Newfoundland
Posts: 4,165
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I could see using a 10 gallon corny as a fermenter due to head space and the fact it won't let in light, but personally, I'd go with a carboy.
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Old 03-30-2011, 12:16 AM   #4
Oct 2009
Valparaiso, Indiana
Posts: 808
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I would go with a carboy too. If you ferment in a corny, it seems good on paper, but once you go to start drinking off of it, you run the risk of all kinds of sediment, or waiting for sediment. That of course, is depending on your setup. To me, carboys are better, and buckets are better yet since they are easier to clean.

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Old 03-30-2011, 12:20 AM   #5
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Dec 2010
Posts: 11,995
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Fermented in a 5 gallon corny, without issue... Use fermcap in the batch and chances are you won't even need a blow-off tube... You will want to pull the dip tube though and either use that post for the airlock, or pull the relief valve and use a small stopper there (for the airlock to go into)... You have options...

I see a lot of benefits from fermenting in corny kegs as well as Sanke kegs. I would advise leaving at least a couple of inches worth of headspace in it though. Don't try to cram more than 5 gallons in. If you made a starter, decant it and just pitch the yeast slurry. If it's a lot of yeast, reserve some of the wort in the fridge.

As already mentioned, there are other threads about doing all of this...

I will be bottling my first corny keg fermented batch this week... It was started on 2/26...
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