How to sterilize CO2 lines and How often

Discussion in 'Homebrewing' started by peter831, Oct 5, 2015.

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  1. peter831

    peter831 Initiate (0) Dec 2, 2012 California

    I have had many great beers and then a bad one, off and on for a year or so, and attributed it to my brewing.

    After cold crashing my beer, I usually put some beer into some 32oz plastic containers and force carb with those blue carb tops. The beers taste great, then a week later when the keg is carbonated I get a slight slippery feel or taste and I have lost all the clear - crisp taste of my IPA's.

    Did this again last week, new beer is a Citra/Simcoe, and tasted great in the 32oz within 2 hrs of pulling out of the cold crash.

    A week later = might just pitch it,

    Kegs are cleaned with oxyclean, rinsed 2x with Sanitizer, purged with CO2, no splash, topped, filled with CO2 and released 3-4 times.

    Think I might have hit on the issue:
    when force carbing I occasionally build up more pressure in the 32oz container and a little beer goes up the CO2 supply line.

    Thinking it goes bad? Cant think how, there should be all CO2 and no O2 but I am stumped,

    OR,

    its the same keg that keeps going bad - I will mark it this time.

    So, should I clean out the supply lines and with what?
     
  2. jbakajust1

    jbakajust1 Pooh-Bah (2,552) Aug 25, 2009 Oregon
    Pooh-Bah

    Just replace all the suspected CO2 lines with fresh line and give all the connections a good cleaning by a soak in oxyclean after disassembling.
     
    billandsuz and PortLargo like this.
  3. AWolfAtTheDoor

    AWolfAtTheDoor Initiate (0) Oct 30, 2005 Washington

    I agree with jbaka. Beer line is cheap on the home brew scale, just replace them.
     
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