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Old 08-20-2009, 02:40 PM   #1
ThinkinDavid
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Default Stuck Fermentation, how do I proceed?

My carboy has been sitting in the basement in the mid to low 70's. Yesterday I took a reading and it was only at 1.014, so I took it upstairs into my kitchen where it would be a little warmer and swirled her around to stir and wake up the yeast. I was happy to see that there were some signs of fermentation, so I let it sit over night hoping it would have knocked off that extra 4 GUs. Needless to same the gravity did not change. I swirlled it around again and it is showing minor signs of yeast activity. I am wondering if this is a good way to get my yeast to eat up the rest of the sugar, or at least not a bad way. I don't see any reason why they would not be able to celar it to 1.010, there should not be many non-fermentables in there.

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Old 08-20-2009, 02:43 PM   #2
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What was your OG? Has the hydrometer reading been stable for a few days now? It might just be done...

I'm guessing that "activity" you saw after swirling was CO2 being released from the beer and not yeast...

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Old 08-20-2009, 02:48 PM   #3
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my OG was 1.046. When I swirl it, it reacts a lot like a starter might when you shake it. And yesterday it had that darker core with a lighter outside which I also attributed as yeast activity. But I'm also wondering if it isn't just done.

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Old 08-20-2009, 03:15 PM   #4
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It's not yeast activity, it's just you making all the CO2 come out of solution when you swirl it.

I would say it's done and not going any further. I wouldn't really classify 1.014 when expecting 1.010 as a stuck fermentation. The main factor is what your mash temp was/is or how fermentable the extract you used is.

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Old 08-20-2009, 03:18 PM   #5
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Thanks guys, I appreciate it. Looks like she's ready for bottlin.

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