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Thread: Using CO2 From fermentation to carb your brites

  1. #1
    Join Date
    Jan 2012
    Posts
    10

    Using CO2 From fermentation to carb your brites

    Aside from difficulties regulating the pressure, would it be possible to run a CO2 line from the blowoff valve during active fermentation to a carbstone in the brite tank to carbonate the beer? We are having difficulties with our bulk CO2 provider and I was wondering if anybody has tried this or not. Any help would be great.

  2. #2
    Join Date
    Jan 2003
    Location
    Palau
    Posts
    1,518

    Recommend against it...

    Fermentation liberates some pretty nasty volatiles that do not work well to carbonate beer. Headaches are one typical complaint. Those that do collect CO2, and these are large breweries, must purify it before storage and use. Good luck!
    Phillip Kelm--Palau Brewing Company Manager--
    Worldwide Brewery Installations
    www.GitcheGumeeBreweryServices.com

  3. #3
    Join Date
    Jul 2008
    Location
    UK
    Posts
    407
    As Phillip says there are many breweries, mainly larger ones, that recover CO2 from fermentation, but this is not used directly for carbonation due to the level of impurities.

    Another consideration is that it CO2 recovery lines on FV's are a nightmare to keep sterile, so there is a real risk of transferring micro infections to bright beer as well as yeast (either brewery or wild).

  4. #4
    Join Date
    Jan 2012
    Posts
    10
    Thanks guys.

  5. #5
    Join Date
    Apr 2010
    Location
    Moorpark Ca, USA
    Posts
    150
    We attach a spunding device at the last couple gravity points and let the beer naturally carbonate.

    Its basically an adjustable pressure relief regulator that allows you to set the pressure. If the pressure is over the setpoint, the c02 just bubbles out the side. You'll of course need to have your normal PRV and run the spunding pressure under the PRV's cracking pressure.
    Chris Enegren
    www.enegrenbrewing.com

  6. #6
    Join Date
    Jun 2011
    Location
    Woodland Park, CO.
    Posts
    307
    spunding devices act as a prv so you don't need another prv on the tank.

  7. #7
    Join Date
    Jan 2003
    Location
    Palau
    Posts
    1,518
    I would not use a spunding valve as an SRV due to a variety of reasons. For example, you may not have a shutoff (eg butterfly) valve installed between the spunding device and the tank (as most breweries do). You must also have a valve sized to the largest diameter penetration in the tank--for most tanks this is the bottom outlet. Flow rate also has to be sized correctly depending on the use of the tank. And spunding devices may possibly be set higher than one bar on a non-ASME tank. Spunding valves also do nothing for vacuum protection. And there are other reasons.... SRVs operate differently from spunding devices. Have dedicated SRVs installed, cleaned, and periodically tested.
    Phillip Kelm--Palau Brewing Company Manager--
    Worldwide Brewery Installations
    www.GitcheGumeeBreweryServices.com

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