[azubinski]

CA (controlled atmosphere) is relatively old multidisciplinary science, practice and huge businesses today.

https://en.wikipedia.org/wiki/Controlled_atmosphere

And, yes, thanks to CA fruits and vegetables are really fresh at shelves, because a CA is about controlling of natural processes of ripening. Till CA adoption USA imported about 90% apples out of season. Now less than 5% only.

It's one of the greatest invention and applied science over the past 100 years.

[calvinmorrison]

Exactly! Cold supply is very cool

[tome]

Wow, this is very interesting! Thanks for sharing. I've never heard of controlled atmosphere before but it makes sense. I always wondered how so much produce could always ben in a fresh state.