Friday, June 12, 2009

Homebrew Digest #5568 (June 12, 2009)

HOMEBREW Digest #5568 Fri 12 June 2009


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


***************************************************************
TODAY'S HOME BREW DIGEST BROUGHT TO YOU BY:

Sponsor The Home Brew Digest!
Visit http://www.hbd.org/sponsorhbd.shtml to learn how

Support those who support you! Visit our sponsor's site!
********** Also visit http://hbd.org/hbdsponsors.html *********

DONATE to the Home Brew Digest. Home Brew Digest, Inc. is a
501(c)3 not-for-profit organization under IRS rules (see the
FAQ at http://hbd.org for details of this status). Donations
can be made by check to Home Brew Digest mailed to:

HBD Server Fund
PO Box 871309
Canton Township, MI 48187-6309

or by paypal to address serverfund@hbd.org. DONATIONS of $250
or more will be provided with receipts. SPONSORSHIPS of any
amount are considered paid advertisement, and may be deductible
under IRS rules as a business expense. Please consult with your
tax professional, then see http://hbd.org for available
sponsorship opportunities.
***************************************************************


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


* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* The HBD Logo Store is now open! *
* http://www.hbd.org/store.html *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Beer is our obsession and we're late for therapy! *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * *

NOTE: With the economy as it is, the HBD is struggling to
meet its meager operating expenses of approximately $3400
per year. If less than half of those currently directly
subscribed to the HBD sent in a mere $5.00, the HBD would
be able to easily meet its annual expenses, with room to
spare for next year. Please consider it.

As always, donors and donations are publicly acknowledged
and accounted for on the HBD web page. THank you


Send articles for __publication_only__ to post@hbd.org

If your e-mail account is being deleted, please unsubscribe first!!

To SUBSCRIBE or UNSUBSCRIBE send an e-mail message with the word
"subscribe" or "unsubscribe" to request@hbd.org FROM THE E-MAIL
ACCOUNT YOU WISH TO HAVE SUBSCRIBED OR UNSUBSCRIBED!!!**
IF YOU HAVE SPAM-PROOFED your e-mail address, you cannot subscribe to
the digest as we cannot reach you. We will not correct your address
for the automation - that's your job.

HAVING TROUBLE posting, subscribing or unsusubscribing? See the HBD FAQ at
http://hbd.org.

LOOKING TO BUY OR SELL USED EQUIPMENT? Please do not post about it here. Go
instead to http://homebrewfleamarket.com and post a free ad there.

The HBD is a copyrighted document. The compilation is copyright
HBD.ORG. Individual postings are copyright by their authors. ASK
before reproducing and you'll rarely have trouble. Digest content
cannot be reproduced by any means for sale or profit.

More information is available by sending the word "info" to
req@hbd.org or read the HBD FAQ at http://hbd.org.

JANITORs on duty: Pat Babcock (pbabcock at hbd dot org), Jason Henning,
and Spencer Thomas


----------------------------------------------------------------------


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

------------------------------
End of HOMEBREW Digest #5568, 06/12/09
*************************************
-------