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Thread: oxygen scavenger crowns

  1. #1
    Join Date
    May 2007
    Posts
    40

    oxygen scavenger crowns

    I am looking for data on the effectiveness of oxygen scavenging crowns. Something quantitative would be great, but antidotal stories would help. Have any tasting panels out there done the head to head comparison in house? Trying to see if they are worth a price premium? Is there any downside other then price?
    Jacob Simmons
    Backpocket Brewing
    www.backpocketbrewing.com

  2. #2
    Join Date
    Apr 2009
    Posts
    19
    We use a company out of Mexico called Fabricas Monterrey. We are currently doing tests on D.O. I should be able to give more info in a weeks time. Have never done a side to side comparison, but the Dissolved Oxygen content before bottling and after it has been in the bottle for a month should give us an idea how well they work. Cheers, Ethan

  3. #3
    Join Date
    Jul 2008
    Location
    UK
    Posts
    447
    Oxygen scavenging crowns are only effective for relatively small amounts of oxygen in the headspace of a bottle.

    They will not do anything to mitigate the staling effects of dissolved oxygen, the level of this will drop inherently with time as the beer oxidises/stales.

    Good practice throughout the process will be far more effective in ensuring low DO2 levels than anything else. Remember that high levels anywhere in the post-fermentation process will cause flavor defects that cannot be rectified further down the line.

  4. #4
    Join Date
    Feb 2010
    Location
    Montreal, Qc. Canada
    Posts
    35
    Quote Originally Posted by jasimmon
    I am looking for data on the effectiveness of oxygen scavenging crowns. Something quantitative would be great, but antidotal stories would help. Have any tasting panels out there done the head to head comparison in house? Trying to see if they are worth a price premium? Is there any downside other then price?
    I could send you some technical data on how the oxygen scavenger works and what not. Also might be able to send you some references of several of our accounts that have done work with these.
    Send me an email at info@vitogiannis.com

    Cheers,

    Frank

  5. #5
    Join Date
    Feb 2010
    Location
    Montreal, Qc. Canada
    Posts
    35
    Quote Originally Posted by Brother Ethan
    We use a company out of Mexico called Fabricas Monterrey. We are currently doing tests on D.O. I should be able to give more info in a weeks time. Have never done a side to side comparison, but the Dissolved Oxygen content before bottling and after it has been in the bottle for a month should give us an idea how well they work. Cheers, Ethan
    Brother Ethan,

    Any chance I could send you some of our crowns for a comparitive test? Astir uses dryblend lining materials which is more modern than the foamed materials used in Mexico.
    Cheers,

    Frank

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