Originally Posted by AZ_IPA
Do you any scientific citations for this carcinogenic oil and its effects, other than the usual 'this chemical causes cancer in California'?
I dont have any studies on the specific chemicals.
I worked at a natural gas distribution center for 2 years that also distributed other gases. They werent able to sell Co2 legally to restaraunts to use it for cooking purposes because they didn't have a FDA approved filtration system for the giant Co2 process. This was 9 years ago.
The best thing to go is to get a large tank and put dry ice into it, heat it slightly, and allow for the sublimation of the dry ice to create Co2.
The ice should theoretically be sanitary, and you can make the inside of the tank sanitray. At the end of the day, the ppm of the oils is probably extremly minute. But its something to worry about if you go throught 30+ kegs a year!