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Old 11-03-2010, 04:57 AM   #1
mhot55
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Default Stuck Fermentation

Brewed clone of founders breakfast stout 3 weeks ago. OG-1.075, mashed high temp (157*). Coffee grounds and cocoa powder added at flameout. Pitched 2 packs re-hydrated safale us-05 dry yeast. Fermentation was quick and explosive, probably lost nearly 1/2 gallon due to blow-off. Ferm temp was 65-68*. Roused the carboy 2 times a day for first 10 days. Just racked to secondary, FG= 1.027......this seems WAAAAY to high.

I know there were a lot of unfermentables (high mash temp), but could it be that cocoa powder and maybe coffee affects the FG where i may be closer to where i want to be. I was figuring on at least a 1.022 FG. If i need fresh yeast, can i just pitch re-hydrated dry yeast (no starter)

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Old 11-03-2010, 05:49 AM   #2
Nateo
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Well, you mashed at 157 and you got 64% attenuation. That's done, not stuck. According to Noonan you should only get between 66-69% attenuation at that mash temperature, and that's assuming no cara-type malts.

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Last edited by Nateo; 11-03-2010 at 05:50 AM. Reason: fixed my math
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