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Thread: Carbonation Stone Plugged

  1. #1
    Join Date
    Mar 2018
    Location
    Fort Kent, ME, USA
    Posts
    10

    Carbonation Stone Plugged

    Currently having issues with our carbonation stone being "plugged" Not getting any flow through it. We've boiled it in water for 10 minutes with no difference. Does anyone suggest a different process on unplugging it? Thank you very much for any information
    Cheers!

  2. #2
    Join Date
    Jun 2010
    Posts
    320
    Did you try to soak it in the caustic?

  3. #3
    Join Date
    Mar 2018
    Location
    Fort Kent, ME, USA
    Posts
    10
    What type of caustic do you use? Or what would you recommend? We are a 1bbl nanobrewery and we still use PBW mostly. So haven't gotten into the caustic world yet.

  4. #4
    Join Date
    Sep 2013
    Location
    Massachusetts
    Posts
    244
    Also try soaking in Isopropyl. Be careful when handling stones, the oil from your skin can actually clog them. Heat and soaks is about all you can do unless the stone is physically damaged which is easy to do. The pores on these are extremely delicate. If you can get your hands on an ultrasonic cleaner, do it. These are the best for stone cleaning.

  5. #5
    Join Date
    Nov 2002
    Location
    Polson, Montana, USA
    Posts
    1,275
    I soak mine in isopropyl alcohol and never touch the stone surface with my hands. It truly makes a difference in performance.

    Prost,
    Dave
    Glacier Brewing Company
    406-883-2595
    glacierbrewing@bresnan.net

    "who said what now?"

  6. #6
    Join Date
    Sep 2005
    Location
    Louisville, KY
    Posts
    955
    A good soak in phos or nitric acid is also advisable to keep stone from building up. Do you ever back flush the stone with hot water?
    Joel Halbleib
    COO / Zymurgist
    Goodwood Brewing Co
    636 East Main St
    Louisville, KY
    goodwood.beer

  7. #7
    Join Date
    Nov 2018
    Location
    Pittsburg, CA
    Posts
    9
    I would also recommend on top of everything else already mentioned, while soaking the stone in caustic or pbw, hook up to your CO2 and blast the stone while submerged. You will be able to see just what areas you are having trouble in while there are bubbles rising up. Hard to troubleshoot while carbing so the bucket works well!

  8. #8
    Join Date
    Jun 2010
    Posts
    320
    Quote Originally Posted by firstmile View Post
    What type of caustic do you use? Or what would you recommend? We are a 1bbl nanobrewery and we still use PBW mostly. So haven't gotten into the caustic world yet.
    You could soak it in PBW overnight and then back flush it with hot water. If possible keep the gas inlet above the liquid level.

    PBW to my opinion is not very good cleaner. I would suggest that you find a local knowledgeable chemical supplier.

  9. #9
    Join Date
    Jan 2003
    Location
    Palau
    Posts
    1,999

    A good carbonation stone requires a good cleaning regimen...

    Use an ultrasonic cleaner with a detersive acid. You'll have a clean stone in a matter of an hour or so. If it's really bad, you may need more than one soak.
    Phillip Kelm--Palau Brewing Company Manager--

  10. #10
    Join Date
    Nov 2002
    Location
    Toronto, Canada
    Posts
    131
    I have soaked carbonating stones in concentrated nitric acid followed by autoclaving which works really well.
    It is dangerous stuff, use appropriate precautions etc.

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