Author Topic: Head space primary germentation.  (Read 604 times)

Offline curtdogg

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Head space primary germentation.
« on: December 03, 2016, 10:26:27 PM »
It's time to purchase a new fermenter. I brew all grain, 3 gallon batches. I'm looking at getting a 5 gallon Big Mouth bubbler as my primary fermenter. Being that I will have 2 gallons or so of headspace will this cause any issues?

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Curtdogg.


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Online natebrews

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Re: Head space primary germentation.
« Reply #1 on: December 03, 2016, 10:45:57 PM »
I wouldn't think so.  I have fermented 3gal in a 5gal container without any issue.  No worries about blow off for sure. 
Risk of failure should be no deterrent to trying.

Offline curtdogg

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Re: Head space primary germentation.
« Reply #2 on: December 03, 2016, 10:55:22 PM »
That's my understanding as well. Secondary is where you don't want heads pace because of oxygen. Correct?

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Online natebrews

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Re: Head space primary germentation.
« Reply #3 on: December 03, 2016, 11:02:53 PM »
Secondary....what's that?  Does anyone do that anymore?
Risk of failure should be no deterrent to trying.

Offline curtdogg

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Re: Head space primary germentation.
« Reply #4 on: December 03, 2016, 11:08:04 PM »
I use one for additions.
Rack on to fruit, spices etc.
Even dry hop.

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Offline curtdogg

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Re: Head space primary germentation.
« Reply #5 on: December 03, 2016, 11:10:46 PM »
I use one for additions.
Rack on to fruit, spices etc.
Even dry hop.

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I also bottle all my homebrew. I'm sure most people don't do that anymore.

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Offline HoosierBrew

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Re: Head space primary germentation.
« Reply #6 on: December 03, 2016, 11:53:53 PM »
No worries on the 2 gal of headspace in your primary - the CO2 of fermentation will purge the space. I like ~ 30% headspace in fermenters, to contain the crazy krausen you get with strains like 3787, 3068, etc. FWIW I use 8 gallon wine fermenter buckets for 5.5 gallon batches. 
Jon H.

Offline curtdogg

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Re: Head space primary germentation.
« Reply #7 on: December 04, 2016, 12:29:02 AM »
No worries on the 2 gal of headspace in your primary - the CO2 of fermentation will purge the space. I like ~ 30% headspace in fermenters, to contain the crazy krausen you get with strains like 3787, 3068, etc. FWIW I use 8 gallon wine fermenter buckets for 5.5 gallon batches.
Thanks.

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