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Old 07-27-2008, 01:15 AM   #1
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Default Latuer Tun Round vs rectangular cooler. Is one better than the othe?

I'm looking at making a Latuer Tun using a cooler. I'm having a little trouble finding the right type of cooler(24 qt rectangular) Do the 24 qt water cooler work OK for a 5 gallon batch?

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Old 07-27-2008, 01:26 AM   #2
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I don't think the shape makes that much difference, but I'm sure people here will tell you go ahead and get a bigger one. The difference in cost is minimal, and you'll be glad you did the first time you want to brew a big beer or step up to a 10 gallon batch.

The first one I made was with a 5 gallon cooler and it works pretty will up to about 12-13#s of grain, I seem to get better efficiency than most people report.

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Old 07-27-2008, 01:40 AM   #3
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I have a 48QT rectangular that works extremely well (I get ~90% efficiency). I would definitely go larger now rather than later (and you WILL want to go larger later).

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Old 07-27-2008, 01:43 AM   #4
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I really don't think it matters, but if you really need a tiebreaker, the round shape has less surface area per volume, which theoretically would be better for holding temp.

I have rectangular 50qt with the valve at the center of the long side. Usually you see the valve on the end but not this one for some reason. The braid inside looks a little awkward like it doesn't know which side to rest on (hah). I've thought about making it all fancy with a tee so it has an arm going each direction, but I haven't had any sparge issues yet. First AG got 77% and second got 68%. Hit all temps dead on, so I write up the fluctuation in efficiency to the crush (I don't crush my own yet).

+1 to go big now, I plan to do 10 gallon batches someday but if you had asked me 2 months ago, I hadn't even thought about it yet.

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Old 07-27-2008, 01:49 AM   #5
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Hey, what kind of set up inside of your coolers do you use? I've seen copper and plastic tubing being used. I saw one photo that only used a single line with holes in it.

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Old 07-27-2008, 01:55 AM   #6
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I use standard 5/16" tubing from the LHBS with notches cut out of it inside of a braided stainless line. Put a female threaded hose barb in the end and a male plug screwed into that. Lemme dig for a link.

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Old 07-27-2008, 01:57 AM   #7
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This with the fix that gets rid of the hose clamps.
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Old 07-27-2008, 01:57 AM   #8
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Thanks for the info

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Old 07-27-2008, 02:00 AM   #9
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Here's a good read for you in case you haven't read it:
http://www.howtobrew.com/appendices/appendixD.html

The only thing I can add is that, if you plan to fly-sparge, a round mash tun with a false bottom will get the most sugars out of the grains.

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Old 07-27-2008, 05:11 PM   #10
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Hey Bradsul (or anyone else for that matter),
How do you sparge a higher gravity beer with a 48qt mash tun. I just did a wit in a 48 qt mash tun and did 2 very full sparges (2 gallons each). I could possibly fit another quart in each but it would be close.

Looking at your recipes you do beers above 1.060. Do you do three batch sparges? or do you get enough efficiency out of 2 sparges of about 2 gallons each?

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