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Old 08-02-2012, 11:23 PM   #1
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Default Can I Ferment 2.5 Gal in a 5 Gallon bucket?

Can I Ferment 2.5 Gal in a 5 Gallon bucket?

Yes/No/Maybe ?

Got a 2.5 gallon Mr Beer American Light as a gift. I have since tossed my Mr Beer Barrel, but I do have my 5 gallon.... Would it still work ok ?

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Old 08-02-2012, 11:25 PM   #2
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That works perfectly! And you won't have to worry about a crazy krausen showing up.

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Old 08-02-2012, 11:33 PM   #3
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2.5 gallons should ferment without problems in a 5 gallon bucket for primary fermentation. Some people prefer it for beers with volatile fermentations like hefes because it leaves enough headspace for the krausen to rise without requiring a blowoff tube.

It's important to note that 5 gallons will not necessarily work for 2.5 gallons in secondary if you choose to use one. Because the beer isn't producing CO2 in as great of quantities as during primary, all that head space will be full of oxygen making the beer more prone to oxygen damage or infection. That's not to say if you secondary 2.5 gals in a 5 gal bucket you'll ruin your beer, but something to think about.

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Old 08-02-2012, 11:37 PM   #4
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Excellent, too bad Mr Beer doesn't sell 5 gallon gift kits, You still have to do your usual routine, but this time for only for 2.5 gallons.......Sheesh...

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Old 08-02-2012, 11:51 PM   #5
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I only do 3 gallon all grain batches, it's great. You could just buy another extract kit from mr beer and do the full 5 gallons.

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Old 08-03-2012, 02:45 AM   #6
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I also do 2.5 and 3 gallon batches in a bucket but I use a 7.9 gallon ale pale.

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Old 08-03-2012, 03:13 AM   #7
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Quote:
Originally Posted by dstranger99 View Post
Can I Ferment 2.5 Gal in a 5 Gallon bucket?

Yes/No/Maybe ?

Got a 2.5 gallon Mr Beer American Light as a gift. I have since tossed my Mr Beer Barrel, but I do have my 5 gallon.... Would it still work ok ?
Yeast doesn't give a (*#* how big the bucket is. You can ferment a two quarts in a 5 gallon bucket if you want.
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Old 08-03-2012, 03:48 AM   #8
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GO FOR IT! Only concern is don't fool with the airlock at any point until you're ready to take an FG reading. That much headspace turns to CO2 during fermentation, take out the bung and you're introducing oxygen (aka oxidation). It's not a HUGE concern for 3 week or less fermentations but something to keep in mind. I'd say don't mess with it for 14 days, take FG reading..take another in 2 days...if stable, bottle / keg. Some say 3 weeks but well it's all individual preference.

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Old 08-03-2012, 01:56 PM   #9
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Yes to primary, No to secondary. If you want to use secondary, it should be closer to the batch size with very little headspace.

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Old 08-03-2012, 05:01 PM   #10
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I'd add a bunch of other stuff to it to not make an american light beer kit... but that me
I like big beers

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