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Old 03-15-2013, 12:05 PM   #1
wildcatman17
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Mar 2013
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I am just getting into brewing and was wondering if a 5 gallon mash tun wil be large enough to make a 5 gallon batch or should I go larger. Having a hard time finding a round drink cooler over 5 gallons....

 
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Old 03-15-2013, 12:13 PM   #2
GrogNerd
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Oct 2012
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max beer you could brew 5 gallons of in a 5 gallon mash tun would be 1.068

(decimal part of gravity * batch size)/17 = quarts needed

backwards: (mash tun size * 17) / batch size = decimal part of max gravity that can be brewed

mash tun size in quarts, batch size in gallons

rubbermaid makes a 10 gallon round, sold at Home Depot
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Old 03-15-2013, 12:17 PM   #3
CKing
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I started all-grain over a year ago with two 5-gallon beverage coolers (Mash Tun & Hot Water Tank set up).
Been able to successfully mash up to 13.5 lbs of grain in it.
Most of my beers are in the 5-7% abv range and the 5-gallon coolers have worked great.
Most go with the 10-gallon size, but I like mashing with as little head space as possible.
Can always get a 10-gallon cooler and use the parts I have in the future.

 
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Old 03-15-2013, 12:17 PM   #4
Paulgs3
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Go big bro! I have a 10g igloo and I find myself needing a bigger one from time to time. You can do a higher grav beer in a 5 gal, but mixing it it a PITA. It is hard to do when you have grains and water 1" from the top of the cooler.

 
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Old 03-15-2013, 12:24 PM   #5
wildcatman17
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Guess I will keep looking Home Depot by me is out of 10 Gallons coolers are sorta hard to find this time of year....Not a large variety yet....

 
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Old 03-15-2013, 12:29 PM   #6
tommysauder
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I just started using the 5-gallon as the 10-gallons aren't sold here in Canada (none that I could find anyways).

But I plan on putting 3.5 gallons in the mash for 60 minutes, and then sparging with 3 gallons, then boiling

I'll let you know how it turns out in a month!

 
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Old 03-15-2013, 12:34 PM   #7
wildcatman17
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Ok thanks Maybe I will just try the 5 gallon and see how it goes ...5 gallon is only 20 bucks...

 
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Old 03-15-2013, 12:44 PM   #8
i_heart_beer
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I'm also new to brewing and picked up a 48qt(12 gal) Rubbermaid beverage cooler. Not round, but rectangle. I'm pretty confident on the efficiency and it also was only 20$ at menards.

 
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Old 03-15-2013, 01:00 PM   #9
Varmintman
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I brewed for a very long time in a 5 gallon rectangular cooler and it was fine. But I do not brew high gravity beers so it worked fine for me. I just switched to a ten gallon cooler so I could start making 10 gallon batches but instead am making no sparge 6 gallon batches with it. It is kind of cool to mash in and forget it for awhile and then dump it all into the boil pot.

In the end it all depends on what you want to do. If you enjoy big beers or plan to brew 10 gallon batches then a big cooler is a must. If none of the above apply then a 5 gallon cooler is the ticket. In any case enjoy brewing

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Old 03-15-2013, 03:11 PM   #10
i_heart_beer
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I also plan on sparging in it, picked up a ball valve, a bazooka tube and some other brass fittings... This particular cooler had no existing drain so I can put my bazooka tube way in the corner, I bet with everything, I only spent 60$ (give or take)

 
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