KiwiSander
Active Member
Hi all,
I normally use CO2 for purging kegs, usually while fermenting. And I assume this is the method used by all: I fill the keg with starsan, use the fermenter / CO2 tank to push out the starsan, leaving the tank filled with mostly CO2. But looking around the garage I also have Argon. I can't see any specific advantage in using argon, but would there be any disadvantage?
You would of course lose most (nearly all) of the argon when filling with beer, and then add CO2 for carbonating & serving. But even if some argon was left, would it matter? I'm thinking in a partial fill, if there was a layer of argon covering the beer the CO2 may never end up in solution? I don't think at serving pressure you would end up with significant argon in solution, but this may not be based on any real science.
I know there are various systems for keeping wine on argon to stop oxidation...
Sander
I normally use CO2 for purging kegs, usually while fermenting. And I assume this is the method used by all: I fill the keg with starsan, use the fermenter / CO2 tank to push out the starsan, leaving the tank filled with mostly CO2. But looking around the garage I also have Argon. I can't see any specific advantage in using argon, but would there be any disadvantage?
You would of course lose most (nearly all) of the argon when filling with beer, and then add CO2 for carbonating & serving. But even if some argon was left, would it matter? I'm thinking in a partial fill, if there was a layer of argon covering the beer the CO2 may never end up in solution? I don't think at serving pressure you would end up with significant argon in solution, but this may not be based on any real science.
I know there are various systems for keeping wine on argon to stop oxidation...
Sander