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Old 11-20-2012, 12:48 AM   #1
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Default Fermentation help please

Brewed a batch with a 1.092 OG. After 7 days it fermented down to 1.048. Just wondering how long I should wait. It was vigorous for 4 days and slowed down big time. I am fermenting at 68 degrees. Input is appreciated. Thanks

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Old 11-20-2012, 01:23 AM   #2
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Thats a pretty big beer, what is the recipe? 7 days for a beer that size is way to early to tell anything. If you can detail your process a bit im sure we can provide a bit more input.

Cheers

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Old 11-20-2012, 01:29 AM   #3
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Quote:
Originally Posted by FastAndy
Thats a pretty big beer, what is the recipe? 7 days for a beer that size is way to early to tell anything. If you can detail your process a bit im sure we can provide a bit more input.

Cheers
All grain imperial porter, added brown sugar to the boil, 2000 ml starter which I think is under pitched. 90 minute boil.
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Old 11-20-2012, 06:10 AM   #4
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Raise by 5 degrees. Wait 3 days. Report back.

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Old 11-20-2012, 03:55 PM   #5
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I would say 3 weeks in primary....min....

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Old 11-20-2012, 03:58 PM   #6
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Yea you need to wait more. 7 days and your yeas has brought it down 44 points (48% attenuated) so it should come down further assuming you pitched properly. Like one poster said above, raise the temp a few degrees and forget about it for a week or two. Then check again.

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Old 11-20-2012, 08:09 PM   #7
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Quote:
Originally Posted by dumsboa09 View Post
All grain imperial porter, added brown sugar to the boil, 2000 ml starter which I think is under pitched. 90 minute boil.
unless you used a stir plate or multiple vials, thats def underpitched. what yeast was it?

despite being a large beer, you should be far lower than half way after a week, even underpitched. IME, it should have been done by now. if warming & rousing doesn't get it going again, i'd make a starter with another yeast and add that (or use cake from another beer if u happen to have one going)
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Old 11-20-2012, 08:54 PM   #8
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Did you use a hydrometer or a refractometer to take your most recent gravity reading?

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Old 11-20-2012, 09:23 PM   #9
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Quote:
Originally Posted by daksin
Did you use a hydrometer or a refractometer to take your most recent gravity reading?
Hydrometer and even used a lab thermometer to get proper temp.
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Old 11-20-2012, 09:27 PM   #10
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Two weeks minimum, then 2-3 more days at slightly elevated temp to clean-up. Still needs time to condition after that. Cold crash or rack to keg and leave it alone for another 2 weeks at that point. Huge beers need time. You might not like it much if you try it before then.

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