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


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Contents:
  Call For Judges - Walk The Line and AHA-CoC-Strong Belgians (HamFon\)" <nelson@buildabeer.org>
  Re: false bottom specs (Fred L Johnson)
  false bottom in mash-tun (Fred Scheer)
  False Bottom Specs ("John W. Zeller")
  Re: false bottom specs (Jeff Renner)
  5th Annual Great Lakes International Cider and Perry ("Jeff Carlson")
  Work From Your House And Earn 10% ("SRC CONSTRUCTION COMPANY LTD")


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Date: Mon, 9 Nov 2009 07:57:42 -0500
From: "Nelson \(HamFon\)" <nelson at buildabeer.org>
Subject: Call For Judges - Walk The Line and AHA-CoC-Strong Belgians

We need judges!

Judging date: December 5, 2009 starting at 9AM

Judging location: Oldsmar Taphouse, 300 State Street East #107, Oldsmar, FL 
34677

Staying overnight? You ARE judging strong Belgians and other Imperial beer! 
Try Holiday Inn Express, 3990 Tampa Road, Olsdmar, FL 34677, online rate 
currently about $64.

Dunedin Brewers Guild is very happy to announce that Oldsmar Taphouse will 
be hosting Walk The Line On Barleywine again this year.  In addition, OTH 
will be hosting the American Homebrewers Association Club-only-Competition 
for Strong Belgian Ales (BJCP style 18).  These are both competitions with 
big beers in them - and I'll need some help to judge them all!  We will be 
judging all day, starting at 9AM, and judging for both competitions.  Both 
competitions are AHA sanctioned for BJCP judging points, and the BJCP 2008 
judging guidelines will be followed.

For more information, or if you have not yet entered your beers, check out 
the Dunedin Brewers Guild website at www.DunedinBrewersGuild.com.

IMPORTANT - please email me back if you plan to come, so that I can schedule 
flights.  Judges who RSVP will receive priority.

Nelson Crowle
Competition Coordinator
Nelson at BuildABeer.org 




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Date: Mon, 9 Nov 2009 08:10:41 -0500
From: Fred L Johnson <FLJohnson52 at nc.rr.com>
Subject: Re: false bottom specs

Ralph asks how high off of the bottom a false bottom should sit.

I believe one should make that height as small as possible. The space  
under the false bottom is essentially a mixing compartment which  
reduces the effectiveness of the fly sparge. Ideally, one would want  
the concentrated wort dripping out of the grain to directly the outlet  
with a tiny tube at each hole in the false bottom. By have a space  
(compartment) below the false bottom, the concentrated wort enters  
this pool and is gradually, continually diluted with less concentrated  
wort entering it. This mixture is what leaves the the outlet, not the  
concentrated wort.  The larger the volume of this compartment, the  
more dilution that will be required to get the wort out.

For the sake of illustrating this, imagine how inefficient lautering  
would be if one had half of the total mash liquor volume below the  
false bottom. Although the sugar may have been very effectively  
leached out from the grain bed above the false bottom, the leached  
sugar will remain within the compartment below the false bottom for  
much longer time because it doesn't immediately leave the lauter tun.   
This is why false bottom designs are not necessarily more efficient  
than the Bazooka screen type of design.

My old perforated bucket in a bucket lauter tun design got about 70%  
efficiency by fly sparging with 2.6 quarts per pound of grain with  
beers using 10-12 pounds of grain. That lauter tun had about a 0.6  
gallons of wort below the false bottom. When I switched to a single,  
one inch Bazooka screen, my efficiency immediately went up to about  
83% using the same ratio of sparge water volume to grist weight and  
every thing else being the same. I contend that the difference in  
efficiency was NOT in how efficiently I was leaching sugars from the  
grains. In fact, according to Palmer, I may have been under leaching  
sugars from parts of the bed lateral to the Bazooka screen. The  
efficiency difference was in how much wort enters the Bazooka tube  
compartment (about 3.4 oz in an 8" screen/spigot length), i.e.,  
compared to the 0.6 gallons that was below my false bottom.

Fred L Johnson
Apex, North Carolina, USA



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Date: Mon, 9 Nov 2009 13:27:59 +0000 (UTC)
From: Fred Scheer <fredscheer07 at comcast.net>
Subject: false bottom in mash-tun


Hi Ralph
 
First let's calculate the volume of your mashtun
=3.14*r2*h
=51 gallon volume
I would recommend 2 gallon volume for the false bottom,
which iis about ~1 inch from the bottom.
Cheers
Fred
 


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Date: Mon, 09 Nov 2009 10:58:13 -0500
From: "John W. Zeller" <jwzell at current.net>
Subject: False Bottom Specs

Ralph Link requested specifications for a false bottom he is building.  
Specifically, how much clearance should there be below the FB.  IMO, the 
dead space isn't critical at all.  The best answer would be to position 
it as close to the bottom as possible.  Obviously, it should be higher 
than the outlet port, but it's also good to have it above a sight glass 
port if one is used.  This keeps grain and particulates from entering 
the sight glass and positioned this way the sight glass can be used as 
to eyeball the suction if you are pumping directly out of the MT.  The 
sight glass would also be a vent to the atmosphere which can help avoid 
excessive pump suction that can lead to a stuck sparge.  The reason I 
say the dead space is not critical is that any wort remaining there at 
the end of the sparge will typically be of very low gravity and not 
worth recovering.   I guess the exception might be when batch sparging 
where the runnings may have a higher sugar content.  In that case I 
suppose you could tilt the kettle to drain the dead space if need be.  I 
don't batch sparge, so YMMV on that.  The 24" diameter is a pretty big 
span, so it might be a good idea to provide some supports in the center 
area to keep it from collapsing.  Even low levels of suction applied can 
put a big load on the FB.

 -john z
cincinnati




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Date: Mon, 9 Nov 2009 14:32:47 -0500
From: Jeff Renner <jsrenner at umich.edu>
Subject: Re: false bottom specs

Ralph Link <ralphl at shaw.ca> wrote:

> Does anyone know if
> there is a formula or recommendation for how high off the bottom the
> false bottom should sit for our pot size?

In general, I'd say the closer the better, as long as it clears the  
drainage valve.  The liquid under the false bottom is not  
participating in the starch conversion and only serves to dilute the  
enzymes.  I brew with a 15.5 gallon system and there is 2.5 gallons  
under the fb in order to clear the valve.  This has never caused any  
trouble, but I can't help but think that less would be better.

Jeff

- ---
Jeff Renner in Ann Arbor, Michigan USA, jsrenner at umich.edu
"One never knows, do one?"  Fats Waller, American Musician, 1904-1943





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Date: Mon, 09 Nov 2009 14:55:54 -0500
From: "Jeff Carlson" <carlsonj at gvsu.edu>
Subject: 5th Annual Great Lakes International Cider and Perry

The PrimeTime Brewers and The Great Lakes Cider & Perry Association,
a not for profit organization formed to showcase, educate, and promote 
the art of apple and pear fermentation beverages is pleased to announce 
their 5th annual Great Lakes International Cider & Perry Competition
This unique competition includes categories for both commercial producers 
(holding liquor licenses) and non-commercial producers (home hobbyists 
and non-liquor licensed commercial establishments like cider mills). 
Fermented products of all kinds are welcome; ciders, perrys, meads, 
beers, and commercial distillates, provided that they are made with 
apples and/or pears. Information and a registration packet are available at
http://www.primetimebrewers.com/  or
http://www.michiganbeerguide.com/beerguide.asp 
Entry window is Nov 23 - Dec 8th 2009  Judging is Dec 12th, 
with a judging seminar and tasting the night before Dec 11th.  
The competition takes place in Grand Rapids MI at the 
Amway Grand Plaza Hotel.
This is an AHA and BJCP santioned event.





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Date: Tue, 10 Nov 2009 08:00:52 +0800 (PHT)
From: "SRC CONSTRUCTION COMPANY LTD" <info at noreply.com>
Subject: Work From Your House And Earn 10%




Dear Friend,

Work From Your House And Earn 10%
If you are interested in being a REPRESENTATIVE AGENT in the above
location and your locality,
Please fill out this form below: SRC CONSTRUCTION COMPANY LTD.
Receiving Payment Account Form:

Title : Ms Mr Mrs Dr: ....
First Name: ..............
Surname: .................
Age: 20-55  ..............
Relevant Experience: .....
Your Company Name: .......
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Residential Address: .....
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Zip.......................
Country...................
Phone Number:.............
Fax Number:...............
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QUESTION
DO YOU HAVE AN HOME EQUITY ACCOUNT? YES/NO
WHAT IS THE NAME OF YOUR BANK?
And please know that Everything is absolutely legal,
(Early bird gets the worm, but the second mouse gets the cheese.

THIS IS TO ENSURE YOUR SECURITY AND NON INVOLVEMENT IN CASES OF
 IDENTITY THEFT.

Mr.Shung Park.
EMAIL: srcconstructioncompanyltd at yahoo.com.hk


RESPECTFULLY SUBMITTED,
Mr.Liang Park.
PRESIDENT-SRC CONSTRUCTION COMPANY LTD.
Hong Kong.



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