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Old 06-19-2013, 02:44 AM   #1
ndak
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Dec 2011
Pittsburgh, PA
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Have a fermenator with the blow off assembly. I was wondering after primary when you start dryhopping do you connect your 1/2" barb and put a blanket of CO2 over the beer? If not what do you recommend doing?

Thanks,

Vince

 
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Old 06-19-2013, 11:36 AM   #2
Nagorg
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I just replace the blow off with a normal bung and airlock. Technically I suppose you could blanket with CO2 but you don't need to really; I've never done that and never had any trouble! Chances are that you will still get a little more CO2 production anyway when the yeasties are stirred up a little from the dry hop addition.

 
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Old 06-19-2013, 07:03 PM   #3
BryceL
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I agree you don't really need to, but it also wouldn't hurt if you decide to. I usually just open it up, dump the hops in and replace the blowoff with a new sanitized bung and airlock. I've never had oxidation issues. The CO2 is heavier than air so you should still have a blanket of CO2...just don't stir things up too much when you open it.

 
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Old 06-19-2013, 11:12 PM   #4
ndak
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Thank you for your help...much appreciated.

 
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Old 06-19-2013, 11:16 PM   #5
Jipper
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You'll already have a blanket of CO2 due to the CO2 production during fermentation, so you'll be good to go!

Cheers.

 
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Old 06-19-2013, 11:20 PM   #6
brewguyver
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Also note that the dry hop can act as nucleation sites for the dissolved CO2 in your beer, so that will cause a little extra blanketing as well.

I've made both PTY and Kern River Citra this year (3-4 dry hop additions each) without adding bottled CO2, and I didn't have any problems. This is really more of a concern with longer term aging.
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