On 1/29/2013 9:21 PM, Joe Mastroianni wrote:
> On Tue, 29 Jan 2013 15:44:03 -0500, Frank wrote:
>
>> Also mention was made of need to use food grade carbon dioxide. I think
>> you'll find oil in industrial grades.
>
> Are you sure that "food grade C02" even exists?
>

You can google it up.
I used to work in a lab and we were told industrial dry ice we used
contained oil from machinery used to produce it. I assumed same might
be true for bottled gas.