Do CO2 Lines Need Cleaned Periodically? - Home Brew Forums

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Old 02-18-2009, 08:43 PM   #1
Heineken's Avatar
Jan 2009
Southern NH
Posts: 250
Liked 8 Times on 5 Posts

If the only thing that goes in the CO2 lines is CO2 (no beer gets sucked up through the CO2 line), do the CO2 lines need to be cleaned for each keg batch? I just kegged my first beer this past weekend and already looking forward to my next batch. I know the liquid line side needs cleaned but not sure about the gas line. Thanks.

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Old 02-18-2009, 08:49 PM   #2
Tastes like butterdirt
cubbies's Avatar
Nov 2006
St Louis MO
Posts: 1,928
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Probably not. I still give mine a good cleaning once or twice a year though.

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Old 02-18-2009, 08:50 PM   #3
Jazz Hands!
mmb's Avatar
Feb 2008
Posts: 30,723
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As long as you don't have beer flowing back into the CO2 lines they should be fine as is. If they were clean when you hooked them up they should stay clean as the CO2 lines make a closed system with the ball lock disconnects.
Black Phantom Brewing Company

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Old 02-18-2009, 08:53 PM   #4
Dec 2007
El Paso, Texas
Posts: 1,354
Liked 99 Times on 76 Posts

Here you can see what I do to prevent any problems with CO2 lines.

Each tank has a filter.

Check valve


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