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Old 11-18-2011, 11:31 PM   #1
eabbott88
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Jul 2011
Clive, IA
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Question, If you take a full keg of beer and hit it with 30 lbs. of CO2 and then disconnect it for a few days the CO2 will be absorbed into the beer but should the pressure in the keg drop or will the pressure stay at 30?

Iíve been fighting a leaking keg and thought I had it fixed after replacing a post but now Iím not too sure.

 
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Old 11-18-2011, 11:35 PM   #2
Shooter
Almaigan Brewing Co.
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The pressure is going to equalize between the head space and the beer. So, no, it shouldn't stay at 30 psi in the head space.
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Old 11-19-2011, 01:58 AM   #3
eabbott88
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Clive, IA
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The pressure will drop a ways and then seams to hold steady so that makes sense. Thank you!!!

 
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Old 11-19-2011, 02:27 AM   #4
Bobby_M
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More specifically, the head space is typically about 1/10th the volume of the whole keg. If you put 30psi into the head space and quickly disconnect, in about a day the equilized pressure in both the headspace and beer with be about 3 PSI. If you look at the charts, you'll quickly see why you can't practically do a single application of gas to reach say 2.5 volumes. A chart pressure of 13 psi would require a single burst of 130psi which is where your keg's pressure limit sits.
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