Beer Gun - carbonation question

Discussion in 'Homebrewing' started by smchenry75, Sep 25, 2013.

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  1. smchenry75

    smchenry75 Initiate (0) Jul 7, 2010 Indiana

    I have a Blichmann beer gun that I've used a couple of times now. I REALLY like the idea of bottling from the keg vs. bottle conditioning. I'm still working out the kinks of the process and have this question.

    I filled about 20 bottles of my porter using the beer gun to enter into a competition. It didn't fare too well... partly because it was under carbonated (really no head at all). I filled the bottles a few days before they were judged. I knew I was rushing things a bit and thought that the beer in the keg must have been undercarbonated. I set aside the 17 bottles and forgot about them for about 3 months.

    I cracked one open last night and it was phenomenal! Taste had improved significantly and poured with a nice frothy one inch head that lasted fairly well.

    My main question... when using the beer gun or a counter pressure filler... is there a period of time that the bottled beer needs to sit to reabsorb any CO2 from the head space? Wondering if the flavor issue is just that the beer was young and needed to age a bit. The carbonation difference between beers filled at the same time 3 months ago vs. now is significant and confusing. :slight_smile:
     
  2. OddNotion

    OddNotion Pooh-Bah (1,915) Nov 1, 2009 New Jersey
    Pooh-Bah

    How long were the beers fully carbonated for by the time the competition judges tasted them?

    Edit: I ask this to potentially prove your point that the beer may have been green. I feel my beers need about a week to carbonate in the keg then another week or so to settle and begin tasting good once they are carbonated.
     
  3. justforrazors

    justforrazors Initiate (0) Feb 16, 2013 Missouri

    Which competition did you enter? Just wondering, as my homebrew club just held one this last weekend, and I did some judging in the porter categories.
     
  4. smchenry75

    smchenry75 Initiate (0) Jul 7, 2010 Indiana

    It was the Indiana State Fair Brewer's cup. If I sent you a bottle would you review it for me? I really think it's solid and would love a second opinion before I tweak the recipe based on the original feedback.
     
  5. epk

    epk Pundit (849) Jun 10, 2008 New Jersey

    No, the headspace shouldn't matter that much. You purge the bottle with Co2, then fill from the bottom up, pushing the purge Co2 into the empty space. Ideally you lose little of the Co2 that is already in solution. I assume some may be lost to equalize the headspace once you remove the filler but I've never heard of this being enough to noticeably hurt the carbonation.

    Your 3 month old bottles becoming more carbonated is peculiar though. How long did you carbonate the keg, and what psi, and how many volumes were you aiming for? Bottles chilled? Are you certain that your FG had been reached?
     
  6. VikeMan

    VikeMan Grand Pooh-Bah (3,067) Jul 12, 2009 Pennsylvania
    Pooh-Bah

    Was your bottled beer stored at room temp? If so, my best guess is that your beer was not quite finished with attenuation when you kegged it, and it restarted in the bottles after transfer.
     
    MLucky likes this.
  7. psnydez86

    psnydez86 Initiate (0) Jan 4, 2012 Pennsylvania

    This.

    I've drank bottles the day after bottling with my beer gun and the carbonation was the same. Id check the gravity of this newly carbed porter to see if it wasn't done or maybe some wild yeast are chewing on left overs.
     
  8. epk

    epk Pundit (849) Jun 10, 2008 New Jersey

    Yea, that was my first though, but figured I'd ask. OP, If you do the above, degas the sample before taking a reading.
     
  9. smchenry75

    smchenry75 Initiate (0) Jul 7, 2010 Indiana

    I think you guys have to be right! It would make sense as I did rush this beer to get it entered into the combination. So the bad news... it rated poorly. The good news... I have about a case and a half of really yummy porter in my fridge now! Thanks everyone... I never would have thought of that. :slight_smile:
     
  10. epk

    epk Pundit (849) Jun 10, 2008 New Jersey

    The even better news is that didn't wind up with bottle bombs. Had you been even less patient they could have overcarbed. Risky business, bottling too soon. At least with this one, having sat for 3 months, you're in the clear.
     
  11. smchenry75

    smchenry75 Initiate (0) Jul 7, 2010 Indiana

    Phewww... That would have "been a blast". Buh dun dunt. :slight_smile:
     
    epk likes this.
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