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General Category => Yeast and Fermentation => Topic started by: flbrewer on December 27, 2013, 08:56:38 PM

Title: 1 gallon fermentation question
Post by: flbrewer on December 27, 2013, 08:56:38 PM
Brewing a 1 gallon all-grain Brooklyn Brew Shop IPA and I'm curious about something...
-The fermentation started quickly, probably within the first 6 hours or so. Ambient temps were around 65, not sure which yeast was included in the kit. Is this normal for a small batch?
-I do plan on waiting 2 weeks for primary, although I forgot to take a hydrometer reading before fermentation.

Thanks gents!
Title: Re: 1 gallon fermentation question
Post by: theDarkSide on December 27, 2013, 09:08:05 PM
How big was the packet of yeast and what do you guess was the SG?
Title: Re: 1 gallon fermentation question
Post by: weithman5 on December 27, 2013, 09:11:01 PM
i brew one gallons on occasion. if you used a packet of ale yeast and was warm it would not surprise me much to see activity starting quickly.
Title: Re: 1 gallon fermentation question
Post by: flbrewer on December 27, 2013, 09:46:23 PM
How big was the packet of yeast and what do you guess was the SG?

It seemed to be about the size I use on my 5 gallon batches! The recipe doesn't list SG or FG, but the ABV is supposed to be 6.8%.
Title: Re: 1 gallon fermentation question
Post by: flbrewer on December 28, 2013, 01:50:08 AM
AND now I can start to worry about stuck fermentation! The bubble activity has come to a halt as far as I can see and there is a good layer of crud on the bottom of the little 1 gallon carboy. Time to wait... :-\
Title: Re: 1 gallon fermentation question
Post by: morticaixavier on December 28, 2013, 09:11:59 PM
AND now I can start to worry about stuck fermentation! The bubble activity has come to a halt as far as I can see and there is a good layer of crud on the bottom of the little 1 gallon carboy. Time to wait... :-\

It's more likely just done. Sounds like you way over pitched. Take a reading, it should be somewhere in the 1.010 range if it's done. Regardless go ahead and give it a while longer and hopefully the yeast will clean up after itself.
Title: Re: 1 gallon fermentation question
Post by: flbrewer on December 28, 2013, 09:20:39 PM
It's actually still bubbling once a minute. So perhaps I didn't overdose on yeast. I assume the kits are sent out with the correct amount for a beginner.


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Title: Re: 1 gallon fermentation question
Post by: denny on December 28, 2013, 09:49:23 PM
It's actually still bubbling once a minute. So perhaps I didn't overdose on yeast. I assume the kits are sent out with the correct amount for a beginner.


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Bubbles can mean that CO2 is coming out if solution, not necessarily that the beer is fermenting.
Title: 1 gallon fermentation question
Post by: flbrewer on December 28, 2013, 09:57:33 PM
Could it really be done after 48 hours? I really don't want to take a sample of the 1 gallon batch, what's the safer move? Take a sample or let it sit for 2 weeks?
*side note, I never took a reading for OG


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Title: Re: 1 gallon fermentation question
Post by: klickitat jim on December 28, 2013, 11:56:53 PM
It depends on what done means.
Title: Re: 1 gallon fermentation question
Post by: flbrewer on December 29, 2013, 12:15:58 AM

It depends on what done means.
Ready for bottling.


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Title: Re: 1 gallon fermentation question
Post by: klickitat jim on December 29, 2013, 01:14:56 AM
Then probably not for a couple weeks at least
Title: Re: 1 gallon fermentation question
Post by: Jimmy K on December 29, 2013, 03:57:53 AM
It could definitely be done fermenting in 48 hours. Sounds like you pitched plenty of yeast and held it at a good temperature. I'd be surprised if it was stuck.

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Title: Re: 1 gallon fermentation question
Post by: flbrewer on December 29, 2013, 04:15:37 AM
So the risk of bottling now would be exploding bottles if it weren't done, correct?


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Title: Re: 1 gallon fermentation question
Post by: morticaixavier on December 29, 2013, 04:18:04 AM
So the risk of bottling now would be exploding bottles if it weren't done, correct?


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That, and that although the yeast might new done turning sugar into alcohol it still has plenty of work to do cleaning up other fermentation by products
Title: Re: 1 gallon fermentation question
Post by: klickitat jim on December 29, 2013, 05:01:33 AM
This!
Title: Re: 1 gallon fermentation question
Post by: flbrewer on December 29, 2013, 03:31:36 PM
So the consensus is wait?
Title: Re: 1 gallon fermentation question
Post by: morticaixavier on December 29, 2013, 08:18:59 PM
So the consensus is wait?

yes.

Title: Re: 1 gallon fermentation question
Post by: Jimmy K on December 30, 2013, 02:10:54 PM
So the consensus is wait?
Oh yes, wait. Yeast needs some time to clean up off flavors and the beer needs time to clear.
Title: Re: 1 gallon fermentation question
Post by: flbrewer on January 02, 2014, 02:08:32 AM
Thanks gents!


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