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Old 02-28-2008, 12:23 AM   #11
imasickboy's Avatar
Oct 2007
Landisville, Pennsylvania
Posts: 734
Liked 155 Times on 120 Posts

I've squeezed 14.5 pounds in mine. Extraordinarily difficult to stir, though.

Here's a link to some good mash-related calculators, including one for volume:

Edit: FlyGuy posted the link above. Duh...
"Opinions are like a$$holes. Everyone has one, and most of them stink."

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Old 02-28-2008, 01:22 AM   #12
Senior Member
ajf's Avatar
Oct 2005
Long Island
Posts: 4,646
Liked 105 Times on 99 Posts

I've mashed 13.5 lbs grain in mine using 1 qt per lb. There was just enough space to do a mash out, and fly sparge.


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Old 02-28-2008, 02:49 AM   #13
TheDom's Avatar
Oct 2007
Fort Myers, FL
Posts: 382
Liked 4 Times on 4 Posts

I'd go with the 10gal just for the flexibility it offers with little increase in cost.

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Old 02-28-2008, 04:27 AM   #14
Dec 2007
St. Cloud, MN
Posts: 109

I have a 5 gal Rubbermaid and for the most part it works just fine. I got it because it was $17. I am concidering getting a bigger one but it is not on the top of my list. I have missed temps and not been able to compensate much because of space, but once I got the temps figured out all has been great. If you can get a 10 gal for not much more I guess I would do it.

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Old 02-28-2008, 01:32 PM   #15
CBBaron's Avatar
Feb 2007
Posts: 2,786
Liked 11 Times on 8 Posts

I have the 5gal drink cooler MLT. I can fit 12.5# of grain and batch sparge. I usually aim for under 12# in my recipes because it gets really tight with anything larger.
I am basically draining a full cooler 3 times to get my pre-boil volume. I typically get 78-82% efficiency.

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Old 02-28-2008, 04:00 PM   #16
Lucky Dog Brewing
Apr 2007
Fremont, Ohio
Posts: 115

Talking about the effieciency... how do you figure out your efficiency? I thought I saw a thread on it a couple weeks ago but can't find it now. Anyone got a link to it? edit: I found it nevermind



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