What's the difference between CO2 and N2 used in food packaging?
Meat – Gases used in packaging food
gasmeatpackaging
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Best Answer
CO2 is carbon dioxide and N2 is Nitrogen gas.
In either case, this is referred to as "Modified atmosphere packaging", which means the food is packaged in something other than simply "air".
The point of doing this is that it increases the shelf life of the product.
From the website of a company who sells machines that do this:
And additional clarity from the Wikipedia article on the subject: