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	FORUM ON BEER, HOMEBREWING, AND RELATED ISSUES
		Digest Janitor: pbabcock at hbd.org


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Contents:
  IPA myth? ("oobyjooby")
  Keg Gas question [SEC=UNCLASSIFIED] ("Williams, Rowan")


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Date: Sun, 18 Oct 2009 11:38:40 -0400
From: "oobyjooby" <oobyjooby at cs.com>
Subject: IPA myth?

>>beer made from wort of the specific gravity 1042 is not only better 
>>calculated to resist secondary fermentation and the other effects of a hot 
>>climate,<<

This is a bit confusing and flies in the face of too many other styles. If 
the lower gravity beer was in fact more stable how do we explain the 
evolution of: Export stout,
Russian Imperial stout, Biere de Garde, Oktoberfest and barleywines? 



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Date: Wed, 21 Oct 2009 12:51:33 +1100
From: "Williams, Rowan" <Rowan.Williams at ag.gov.au>
Subject: Keg Gas question [SEC=UNCLASSIFIED]

G'day all,
After changing the disconnect on my gas line so I could gas up a keg
via the beer out diptube, I replaced the beer disconnect with the
original gas disconnect.  Sure enough, I now have a very small
gas leak which is a hassle, but nonetheless manageable.

Then it dawned on me....if I'm occasionally hooking up the gas
line to the keg and giving it a squirt of CO2 to keep pouring
pressure in the keg, am I also inadvertantly adding some O2 to
the keg whilst I'm at it?

I'm not big on gas dynamics, but will a partially filled gas line
add O2 as well as CO2 when I use it - and - is the amount of
O2 over time going to have a flavour negative impact on the
kegged beer?

Cheers,
Rowan

Canberra Brewers Club, Australia
[9588.6, 261.5] AR (statute miles)

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