Carbonation by Sparging vs Injection

Postby **Bilsch** » Wed Aug 31, 2016 12:07 am

These are quite interesting..

https://tapintohach.com/2014/01/27/how- ... n-of-beer/

https://tapintohach.com/2013/12/02/how- ... n-of-beer/

Postby **ParanoidAndroid** » Wed Aug 31, 2016 9:26 am

Yes they are. I'm just throwing this out there, but can Calibration Gas be used for food purposes; in our case carbonating beer? Here's a 17 Liter Cylinder of 99.999% pure CO2 for $33.54 (plus shipping).

Another possible option to increase CO2 purity is this Vici Metronics CO2 purifier. It filters several contaminants, one of which is oxygen. It's not cheap though at $215.00.

Postby **narcout** » Wed Aug 31, 2016 1:25 pm

It sounds like if you are using injected CO2 it is better to carbonate at serving pressure rather than jacking the pressure up in order to carbonate more quickly.

Postby **Bilsch** » Wed Aug 31, 2016 5:21 pm

My thought is if a keg had another diptube or lower port with a coarse stone attached you could inject CO2 in cold beer and set a spund valve for a few PSI and let the excess vent. I think blowing the gas straight in the liquid tube would just make a lot of foam and waste CO2. Maybe it would work at a slow rate?
It is an interesting concept though if you just continuously vent the excess gas it sweeps out most of the O2.