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Old 03-22-2009, 08:51 AM   #1
MikeM
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Mar 2009
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My next batch is going to be an amber ale(extract with grains). I will be using a starter and expect some pretty vigorous fermentation at first. I am planning on using a blow off tube. Do I keep the blow off tube on for the whole fermentation (approx 10-14 days) or do I replace it with an airlock once fermentation has slowed?
Thanks,
Mike

 
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Old 03-22-2009, 09:36 AM   #2
ifishsum
 
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Aug 2008
Portland OR
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I replace it with an airlock once it's clear that fermentation is slowing down, usually after 3-4 days.
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Old 03-22-2009, 12:52 PM   #3
HOP-HEAD
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Oct 2008
West Michigan
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Quote:
Originally Posted by ifishsum View Post
I replace it with an airlock once it's clear that fermentation is slowing down, usually after 3-4 days.
Same here...

 
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Old 03-22-2009, 12:57 PM   #4
danorocks17
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Jan 2009
Indianapolis, Indiana
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yep, couple of days
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Old 07-16-2009, 04:45 PM   #5
CADragon
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Jan 2009
Chicago, IL
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If I'm lazy and don't feel like sanitizing the bung and airlock, does it really make a difference for a 7-10 day fermentation if you leave the blow-off tube the whole time?

 
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Old 07-16-2009, 04:50 PM   #6
Wild Duk
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Mar 2008
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you can leave it on as long as you want......It does the same thing as a 3 piece airlock

 
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Old 07-16-2009, 05:21 PM   #7
MMW
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Apr 2009
Longview, TX
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I leave mine in the whole time due to clearance issues in my chamber.
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Old 07-23-2009, 05:10 PM   #8
BeerShedBrewingCo
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Jul 2009
Southern Indiana
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I leave mine on for the entire first week, until the Kraussen falls. Right, wrong, or indifferent, I always use secondary fermenters, and use a 3 piece air lock on it. It might be in my head, but I like to think it is clearing up, and I am able to filter anything out of the secondary.

 
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Old 07-24-2009, 05:42 PM   #9
Lepoc2635
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Jul 2007
Drexel Hill, PA
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I've never used one... Is that weird? I've brewed some pretty big batches without a problem.
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