FORUM ON BEER, HOMEBREWING, AND RELATED ISSUES
Digest Janitor: pbabcock at hbd.org
***************************************************************
OCTOBER'S HOME BREW DIGEST BROUGHT TO YOU BY:
Ypsilanti Brewing Company
Visit them at http://www.ypsilantibrewing.com/
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:
Scientists find gene for yeast flocculation ("Bob Devine")
Re: The effect of mash parameters on fermentability and efficiency (Fred L Johnson)
Shipping beer ("Spencer W. Thomas")
* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* The HBD Logo Store is now open! *
* http://www.hbd.org/store.html *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Beer is our obsession and we're late for therapy! *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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: Thu, 20 Nov 2008 20:17:55 -0800
From: "Bob Devine" <devinebob at gmail.com>
Subject: Scientists find gene for yeast flocculation
http://www.popsci.com/scitech/article/2008-11/beer-brings-yeast-together
[quote]
A team of scientists at Harvard University reported last week that
they isolated the single gene that allows yeast to stick together.
That gene allows the normally solitary yeast cells to shield
themselves from toxins in their environment by banding together in
protective balls. Since one of those toxins is the ethanol that the
yeast themselves produce, grouping together allows the yeast to
survive in the alcohol-rich environment that results from brewing.
What's more, the gene has a built in social value system that prevents
yeast cells without the gene from taking advantage of the yeast
flock's protective sphere. That social control mechanism is an example
of how single cells can regulate function in larger units.
[endquote]
------------------------------
Date: Fri, 21 Nov 2008 06:51:31 -0500
From: Fred L Johnson <FLJohnson52 at nc.rr.com>
Subject: Re: The effect of mash parameters on fermentability and efficiency
I found Kai's results regarding mash thickness vs. brewhouse
efficiency interesting. Kai's strike water was reverse osmosis water
at two different ratios relative to the grist, with the higher
water:grist ratio giving better yield. Because pH was shown in Kai's
hands to significantly affect yield and because there was no
adjustment of pH in the experiment testing the effect of water:grist
ratio, I was wondering if the pH was significantly different in the
mashes with different water:grist ratios.
Do you have any information on that, Kai?
Fred L Johnson
Apex, North Carolina, USA
------------------------------
Date: Fri, 21 Nov 2008 14:23:42 -0500
From: "Spencer W. Thomas" <spencer at spencerwthomas.com>
Subject: Shipping beer
Interesting... I recently shipped a package by UPS using the online
shipping interface. I registered my package, paid shipping, and printed
the label from the ups.com web site. Nowhere did they ask me what was
in the package. I then dropped the prepaid, labeled package at a local
business that does UPS shipping for no charge. They didn't ask me what
was in the package.
You may wish to consider this information when you are looking for a way
to ship beer to competitions or friends.
=Spencer in Ann Arbor
------------------------------
End of HOMEBREW Digest #5455, 11/21/08
*************************************
-------
