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Old 02-06-2009, 12:29 AM   #1
Mar 2008
Lancaster, PA
Posts: 747
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I brewed an Oatmeal stout on 12/26 (og 1.067). I went to keg the beer on 1/29, but the fg was only 1.025. My basement had gotten cold, and I figured the s-04 went to sleep on me.

I moved the beer up to the kitchen, and waited a week. I checked tonight, and the fg is at 1.023. It did ferment a little more, but still higher than beersmiths estimate.

beersmith og est was 1.057. I actually got 1.067 due to "extra special efficiency day". Beersmiths fg estimate is 1.015, and I'm at 1.023.

I'm looking for opinions on if I should keg now, repitch, or something else. I did rouse again today. I am starting to want this batch off of the yeast cake, as it has been almost 6 weeks on the cake. I haven't left a beer that long in primary.

You'll have to speak up, I'm wearing a towel. - Homer Jay Simpson

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Old 02-06-2009, 12:59 AM   #2
Aug 2008
Huntington Beach, California
Posts: 283
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By a strip heater to keep it at a nice fermentation temperature. Once you get it warm enough (you have a fermometer right?), if it does not go back into fermentation after a quick rousing, I would transfer and repitch.

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Old 02-06-2009, 01:34 AM   #3
Malticulous's Avatar
Aug 2008
St. George Utah
Posts: 4,146
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It's probably done. If I was you and I was thirsty I'd keg it.
Everything is better with a beer.

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Old 02-06-2009, 01:41 AM   #4
We get it, you hate BMC.
Coastarine's Avatar
Apr 2008
New Bern, NC
Posts: 2,516
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Keg! If you were bottling I could understand the concern. How does it taste?! Beersmith's estimate just assumes 75% attenuation no matter what yeast you select. That's more than I often get, especially with S-04. My Irish Red used S-04 and I got about 60% attenuation. You got 64%!
SEMPER FIDELIS ET SEMPER PARATUS Bringin' the 'pane...the propane.Coming Up:..[Hefewiezen][BCS Robust Porter][EdWort's Haus Pale Ale][Peated Ale]
Conditioning:[Oaked Cider][ESB]
On Tap.........[The Munchner][Spiced Cider][English Cider][Simcoe IPA][Triple Hops Grooved][Cider'n 'gnac]

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Old 02-08-2009, 11:12 AM   #5
Aug 2008
Posts: 166
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I had a PM oatmeal stout do the same thing (although with Windsor yeast). It got stuck at 1.024. I repitched with Nottingham and warmed it up...no change. I finally just bottled it. It's a little sweet for my taste, but everyone who has tried it loves it. (Took it to a family party yesterday and got lots of complements.) My opinion is that 1.024 isn't really all that sweet. Yeah, it's very slightly sweet, but only noticeable to the picky drinkers.

This is the batch that got me to work out a system to control fermentation temps. I did this batch during the fall (in New England) and we had a dramatic temperature drop outside (which makes my basement cold). My fermentor dropped below 60F. I think that put the yeast to sleep. Now I use a water bath and aquarium heater.

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