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


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Contents:
  RE: Bubble Logger ("Brian Lundeen")


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Date: Fri, 12 Jun 2009 08:10:38 -0500
From: "Brian Lundeen" <blundeen at mts.net>
Subject: RE: Bubble Logger

> Date: Thu, 11 Jun 2009 15:23:08 -0400
> From: Natalie Hirneisen <cave.natalie at gmail.com>
> Subject: Re: Bubble Logger
> 
> 
> Another thing, normally a blow off tube is needed the first 
> few days of fermentation, maybe a specialty designed high 
> capacity airlock would help?
> 

Sadly, this would invalidate your results. While the science of fermentation
bubble logging is still in its infancy, it has become clear that useful data
mandates the use of an ISO standard size and shape plastic airlock. While a
non-standard airlock might be fine for your own purposes, it is unlikely
that your paper would be accepted for presentation at a conference
sanctioned by the Bubble Logging Organizations of the World (BLOW). Now,
this situation has come up before, as you might expect. BLOW has accepted
papers where the fermentation was carried out in twenty one-gallon jugs to
reduce the activity level to the point where an ISO standard airlock can
handle it. Be aware, that there is still much debate as to the mathematical
corrections required to account for the variations in factors such as
thermal loss and fermenter geometry (not that we need to revisit that
topic).

Good luck with your experiments, and perhaps we'll meet up at the next
conference.

Cheers
Bwian 



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