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Old 09-06-2012, 09:01 PM   #1
Jakeintoledo
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My first time brewing with a larger kettle produced two carboys of Oktoberfest lager that is fermenting away in my lager fridge @ about 53 degrees. It never occurred to me that two seperate smack packs of Oktoberfest Blend from Wyeast would ferment at different rates.

Just did a grav check approaching the time I should do a Diacetyl rest, and I find one at 1.022-1.020, and the second at 1.016.

One's beating the other to the end. expected FG should be about 1.014.

My question--I can't do a diacetyl rest for just ONE of the two batches, without pulling the other out to ferment @ room temp.

Should I wait for both batches to reach approx. final gravity, or do the diacetyl rest while one is within 0.002 points of FG, and the other is 0.007 points away?

Thanx in Advance,
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Old 09-06-2012, 09:08 PM   #2
Yooper
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Quote:
Originally Posted by Jakeintoledo View Post
My first time brewing with a larger kettle produced two carboys of Oktoberfest lager that is fermenting away in my lager fridge @ about 53 degrees. It never occurred to me that two seperate smack packs of Oktoberfest Blend from Wyeast would ferment at different rates.

Just did a grav check approaching the time I should do a Diacetyl rest, and I find one at 1.022-1.020, and the second at 1.016.

One's beating the other to the end. expected FG should be about 1.014.

My question--I can't do a diacetyl rest for just ONE of the two batches, without pulling the other out to ferment @ room temp.

Should I wait for both batches to reach approx. final gravity, or do the diacetyl rest while one is within 0.002 points of FG, and the other is 0.007 points away?

Thanx in Advance,
Oh, sure, do the diacetyl rest on both now. That's fine!
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Old 09-06-2012, 09:30 PM   #3
Jakeintoledo
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Interestingly, my beer has only taken just about 6-7 days to ferment from 1.047 to 1.02.
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Old 09-06-2012, 11:48 PM   #4
Yooper
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Originally Posted by Jakeintoledo View Post
Interestingly, my beer has only taken just about 6-7 days to ferment from 1.047 to 1.02.
That seems about right- I often get to diacetyl rest time in 5-7 days, with fermentation complete by day 10 for all except my biggest lagers.
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