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Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > 3 Gallon Carboy for 2.5 gal batch?
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Old 11-03-2009, 06:29 PM   #1
Jeeperforlife
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Default 3 Gallon Carboy for 2.5 gal batch?

Maybe just ovethinking this one, but ive been thinking about doing smaller batches to try out beer styles ive never had, and experiment in general. Will brewing a 2.5 gal batch (5 gal recipe halved) in a 3 gal carboy be okay? My question is about the excess headspace.
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Old 11-03-2009, 06:29 PM   #2
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Use a blowoff tube.


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Old 11-03-2009, 06:40 PM   #3
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Haha ok gotcha...sounds like a lesson learned by experience...
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Old 11-03-2009, 06:43 PM   #4
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Headspace will not be an issue. However, I second using a blowoff tube. Or, you could use a few drops of Fermcap to keep the krausen down. With a smaller batch, it'd be a shame to lose any beer as blowoff.
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Old 11-03-2009, 06:48 PM   #5
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I have never had a problem with using a 3 gallon sized water jug or better bottle for a 2.5 gallon batch. Never needed a blowoff tube either. But it never hurts to have the fixins for one, just in case.
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Old 11-03-2009, 06:54 PM   #6
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Okay guys thanks for the heads up. Ive got the blowoff tube, just may need a little adaptin...now to start choppin recipes.
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Old 11-03-2009, 08:37 PM   #7
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Yep, it will work fine. I use a 3 gallon BB for my secondary with all my 2.5 gallon batches.
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Old 11-03-2009, 08:43 PM   #8
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Quote:
Originally Posted by sp1365 View Post
Yep, it will work fine. I use a 3 gallon BB for my secondary with all my 2.5 gallon batches.
Yup!!!



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