@knowprose

@otfrom

Although it is possible and permitted to use helium as a food packaging gas, it is way too expensive. Due to the small size oft helium atoms, it is also too volatile for most packaging purposes.

@jochenwettach

@knowprose

I was talking about co2 rather than helium https://www.bbc.co.uk/news/explainers-58626935

@otfrom

@jochenwettach

@knowprose

I haven't seen "Distillers" tanker trucks around for many years - one source of CO2 was the brewing industry (it's not that difficult to liquefy at atmospheric pressure). Later they got it (and industrial ethanol) from the petrochemical industry.

Helium is from radioactive decay in the earth, and separated out from natural gas wells. It's scarce and any leakage ends up in outer space.

@Cadbury_Moose

@jochenwettach

@knowprose

interesting list of US based producers from the epa here https://www.epa.gov/sites/default/files/2020-05/documents/co2_map_050120.pdf

Looks like most produce from ethanol