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Old 03-26-2008, 05:16 PM   #1
Powchekny
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Default rest period and doppelbock kit from AHS

I have a question about the "rest" period specified for my doppelbock kit from AHS. The instructions specify a rest at 60-70 def. F after 10 days of primary at 50-55 deg F.

However, it's been almost 10 days, and primary fermentation is still going pretty strong. Airlock bubble every 3-4 seconds and the beer is still visibly "churning" in the glass carboy.

Does it make any sense to move to a "diacetyl rest" even before primary fermentation finishes?

thanks in advance for any advice you can give me,

Tom


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Old 03-26-2008, 05:51 PM   #2
Beerrific
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Diacetyl are usually done when fermentation is 75% complete. So, yes.

Here is a great resource: http://www.homebrewtalk.com/wiki/ind...menting_Lagers
Diacetyl rest are discussed here.


EDIT: Specifically: http://www.homebrewtalk.com/wiki/ind...on_of_the_beer see schedule F in the figure



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Old 03-26-2008, 06:47 PM   #3
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thanks, Beerrific.

Good advice as always, the chart helped clear things up for me. Does it also make sense to transfer to a lagering step if the fermentation *still* hasn't finished after its diacetyl rest?

Tom
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Old 03-26-2008, 06:57 PM   #4
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Quote:
Originally Posted by Powchekny
thanks, Beerrific.

Good advice as always, the chart helped clear things up for me. Does it also make sense to transfer to a lagering step if the fermentation *still* hasn't finished after its diacetyl rest?

Tom


Finish fermentation before transferring. I would also give it a week after it finishes to 'clean up' before racking and crashing the temp.
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