CO2 Purge in carboy?

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briewer2

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I am about to transfer my IPA to a secondary carboy and dry hop it. I just got a kegerator and have a co2 tank, so I though I would pump a little CO2 into the head space of the carboy to minimize contact with o2. I figured since the beer is pretty much done fermenting the CO2 production would be down, and this would help a bit. Is this a bad idea?

thanks alot

:off: why cant i get pliny in illinois
 
I do it with every rack to secondary.. Dunno how much it helps.. Theorhetically you are diluting the Air in the carboy with co2 so it should help a little, but I doubt I ever get all of the air out without using a bunch of c02..
 
You are going to pick up O2 along the way anyway, but it won't hurt. I know brewers that purge there secondary. It is a bit like purging a bottling when counter pressure filling.
 

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