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Date: 11 Sep 2007 21:29:13
From: JS
Subject: Bottle Size & Carbonation Differences
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I made an Oktoberfest last March, in the Marzen tradition, and
accordingly lagered it 4 mos., bottling it just 3 weeks ago. I almost
always bottle using a mix of bottle sizes, usually mostly 12 oz and
half-ltr sizes. Partly because of the long lagering, there was little
yeast to work on the priming, which was itself a modest amount. I've
noticed a huge difference in the carbonation levels between the 2
sizes, with the half-ltr size much more pronounced than the 12 ozers.
I'm starting to regret not having added fresh yeast, but really can't
understand why the smaller bottles would take longer to carbonate. I
always mix the boiled sugar solution with the entire batch, then fill
the bottles. The concentration of sugar should therefore be the same
regardless of bottle size. Yet the 12 oz bottles have virtually flat
beer, while the larger bottles have a more noticeable carbonation.
Any thoughts to explain this phenomenon?
John S.
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Date: 11 Sep 2007 19:58:32
From: Scott Lindner
Subject: Re: Bottle Size & Carbonation Differences
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Could it be a higher air in the head of the bottle to beer ratio?
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Date: 12 Sep 2007 05:58:29
From: JS
Subject: Re: Bottle Size & Carbonation Differences
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On Tue, 11 Sep 2007 19:58:32 -0600, "Scott Lindner"
<nospam@noemail.com > wrote:
>Could it be a higher air in the head of the bottle to beer ratio?
>
That's possible, altho the 12ozers are filled as you would find them
in the store. More telling is that when I up-end the bottles and
agitate, there's notably more yeast cloud stirred up in the flip-top
half ltrs than the 12s. I'm wondering, since 16.9 is 40% more than
12, if just having that much more beer in a confined space provides
more yeast to work on the sugar, or if it may have something to do
with the diameter difference in the bottles, not so much the overall
vol.
This is something I never notice when bottling ales, since they are
not settling out for so long. There never seems to be any difference
in the rate of carbonation with them vis-a-vis bottle size.
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