Half batches: last for months? in a 5-gallon corny?

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oysterhead

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My brother-in-law and I are splitting batches of brew.

I love the 2.5-gallon corny kegs, but they're pretty expensive.

so i'm thinking of just buying a few 5-gallon corny kegs...and thus my question:

is there anything wrong with filling the keg only half-way up?

will the brew still last for months after i tap it? (using a CO2 tank)

thanks for your help,
Dustin
 

adx

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The extra space will just be taken up by CO2. You'll probably end up going though CO2 quicker, but that's it.
 

david_42

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Just purge the keg with CO2 before filling. I've got a couple barleywines that are partially full and have been for years.
 
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oysterhead

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and the beer will last for months?

i've read a few times that kegged beer will only last a month.

not true with corny kegs, right?
 

Yooper

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Right. As long as you keep the headspace filled with co2, you'll be fine. Just think of a keg as a big bottle. If you open it up, then your beer will be flat and stale. If you keep it closed and the co2 in the headspace (like a capped beer bottle), it'll fine for ages.
 

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