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Old 04-14-2010, 05:53 AM   #1
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Default Stuck fermentation

My fermentation has stopped at 1.018, but i expect it to drop to about 1.008. I gave it a stir but nothing happened. I saved some "stuff" from the bottom of my last brew's bucket. Should I throw that in there?

I kept it in the fridge this whole time, so i guess the yeast is still preserved

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Old 04-14-2010, 06:05 AM   #2
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What kind of beer is it that's stuck and what kind of yeast and type of beer was your last batch? Did you wash the yeast or just save some of the cake as is? Also, what temp has the current one been fermenting at?

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Old 04-14-2010, 06:06 AM   #3
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current beers a summer ale. the cake was from a belgian wit. i used california ale yeast this time fermenting at 68-72. the belgian wit has a similar temp range. I didn't wash anything, just scooped it out in case I needed it.

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Old 04-14-2010, 06:46 AM   #4
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I would be concerned about the Wit yeast imparting banana ester flavors at those fermentation temps, yeah? But maybe not totally undesirable in a summer ale.....?

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Old 04-14-2010, 07:53 AM   #5
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maybe a colder temp them after i pitch it?

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Old 04-14-2010, 12:32 PM   #6
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Maybe it's not stuck- maybe it's done? I wouldn't stir or mess with it very much at all. Unless it tastes undrinkably sweet, I'd call it finished.

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Old 04-14-2010, 10:14 PM   #7
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well according to beersmith calcs, thats a 2.86% ABV. i guess ill taste it

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Old 04-14-2010, 11:53 PM   #8
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Quote:
Originally Posted by mendozer View Post
well according to beersmith calcs, thats a 2.86% ABV. i guess ill taste it
Yes, if you started at 1.040 or so, it's less than 3% ABV. The attenuation of the yeast depends on so many things, like the fermentability of the ingredients. If you used ingredients that weren't all that fermentable, even with a attenuative yeast strain, it won't finish all that low. WLP001 usually finishes up quite well, so I'm wondering about your ingredients.
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Old 04-15-2010, 12:01 AM   #9
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well i used light extract (liquid) and small amounts of flaked wheat and crystal 10L. My last batch was also weak, however I didn't mash correctly (my fault). There's only one homebrew store here on Oahu so I assume the grain/extract turnover is good.

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Old 04-15-2010, 12:37 AM   #10
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well, whats the worst that could happen adding the cake from my last batch? besides other flavors.

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