Fun Food Fact! Did you know that the ‘air’ that you find in a lot of food packaging, is not the same air you and I breathe in every day? The air we breathe on earth is a mixture of roughly 78% Nitrogen, 21% Oxygen and minimal amounts of Argon, Carbon Dioxide, Neon, Helium, Methane, Krypton, Hydrogen, Nitrous Oxide and Xenon.Brimblecombe, P. (1996). Air composition and chemistry. Cambridge: Cambridge University Press.
Depending on what the optimal mixture of gasses is for a product to prolong its shelf-life, the mixture of gasses in food packaging can vary from 100% Nitrogen gas to 100% Carbon Dioxide gas, to a combination of Nitrogen gas, Carbon Dioxide gas and Oxygen gas.
These gasses can be added to food packaging in a number of different ratios.Robertson, G. L. (2013). Food packaging: principles and practice. Boca Raton, FL: CRC Press.
Optimizing the shelf-life of food by changing the atmosphere it is packaged in, is called modified atmosphere packaging (MAP).
This Fun Food Fact (and all other Fun Food Facts) was originally posted on Truthful Science. For more science, check out [www.truthful-science.com]!
Did you enjoy this Fun Food Fact? Please share it or leave a comment and follow Truthful Food on social media so that you won’t miss out on anything new!