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Old 02-17-2009, 05:16 PM   #1
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Default Measurements of a 7.5gal glass carboy?

Trying to figure this out because I bought what were supposed to be 6 or 6.5gal glass carboys from a buddy of mine. Two days ago I brewed up a 5gal batch of Oatmeal Stout and I dumped it in the glass carboy only to have a HUGE amount of headspace. I was expecting to be a little bit under the spot where the glass begins to curve but I was way way under, and I am certain it was the full 5 gallons. My 5 gallon pot was full to the brim.

Anyone have the height measurements and diameter for the 7.gal?


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Old 02-17-2009, 05:42 PM   #2
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got a tape measure?


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Old 02-17-2009, 07:11 PM   #3
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Yes I do, but you're in Corpus Christie, TX. A scant 2000 miles away and I don't think it'll reach. And I am 25 miles from home for 7 more hours, so I can't exactly go figuring out the volume of a cylinder from here.
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Old 02-17-2009, 07:23 PM   #4
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I've never seen a 7.5 gallon carboy, but I just measured a 6.5 gallon one for someone else and it was 12" diameter and something like 20.5" - 21" high
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Old 02-17-2009, 07:33 PM   #5
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I think that's probably a 6.5 gallon fermenter. I have one and just a 5 gallon batch looks rididulous in there. The 5 gallon mark is about 2-3 inches below even the shoulder of the carboy.
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Old 02-17-2009, 09:23 PM   #6
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Quote:
Originally Posted by TwoHeadsBrewing View Post
I think that's probably a 6.5 gallon fermenter. I have one and just a 5 gallon batch looks rididulous in there. The 5 gallon mark is about 2-3 inches below even the shoulder of the carboy.
The Krausen on my beer thats in there now is a good 2" thick and even that is a good 2-3" shy of the shoulder. I think I will take the other one I have and a gallon jug of water to it when I get home later. I am really seriously thinking about making 6 gallon batches if I can get away with it in these things.

If I had to make a guess I would say that these things are nearing 16" wide and about 21" high. They dwarf the 5gal carboy that came in my equipment kit.
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Old 02-17-2009, 09:25 PM   #7
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Quote:
Originally Posted by RedIrocZ-28 View Post
The Krausen on my beer thats in there now is a good 2" thick and even that is a good 2-3" shy of the shoulder. I think I will take the other one I have and a gallon jug of water to it when I get home later. I am really seriously thinking about making 6 gallon batches if I can get away with it in these things.

If I had to make a guess I would say that these things are nearing 16" wide and about 21" high. They dwarf the 5gal carboy that came in my equipment kit.
Well dang...that is a gigantic carboy! My 6.5 gallon fermenters still fit inside a 13x13" milk crate so nowhere near that big. I think we need pics of this freakishly large piece of homebrewing equipment!
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Old 02-17-2009, 09:35 PM   #8
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Quote:
Originally Posted by TwoHeadsBrewing View Post
Well dang...that is a gigantic carboy! My 6.5 gallon fermenters still fit inside a 13x13" milk crate so nowhere near that big. I think we need pics of this freakishly large piece of homebrewing equipment!
I'll try to get up some pics when I get home next to a 5gal. I may be totally wrong here. I even triple checked after I poured the wort into the fermenter that my pots were in fact 5 gallons.

The markings on the bottom of them say " 2002 " could be the year of manufacture, could be a casting number. Anyone?
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Old 02-18-2009, 12:05 AM   #9
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I remember reading a post somewhere (maybe on here) that someone measured out their 6.5 gallon carboy and got something like 7.25 gallons in it all the way to the top.

I know I've racked a 6.5 gal carboy filled to the "shoulder" into a 5 gal corney keg and 4 22 oz bottles and there was something like 1-1.5" of trub at the bottom and there was still probably enough beer in there to fill another 22oz or at least a 12oz left.

I suspect you have a 6.5 gallon carboy
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Old 02-18-2009, 12:43 AM   #10
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This is interesting HUGE 7.5 (7 1/2) Gallon Glass Carboy BIG LARGE Bottle - eBay (item 300293412874 end time Mar-14-09 09:14:56 PDT)

That says I likely have a 7.5gal... 12" wide though, I guess I could be off in my estimate. Well, time will tell... and a 1 gallon jug.


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