Which food packaging innovation was invented by Nicholas Appert in the early 1800s in response to Napoleon's need to feed his armies, leading to modern food preservation methods?

The way products are packaged has evolved dramatically over the centuries. Some packaging inventions have revolutionized entire industries, changed consumer behavior, and solved major supply chain challenges. This question focuses on a groundbreaking packaging innovation that transformed food preservation and distribution worldwide. Test your knowledge about this significant invention that many of us use daily without considering its remarkable history.

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Vacuum sealing (sous-vide packaging)
Canning (food preservation in sealed containers)
Cellophane wrapping (transparent packaging film)
Tin foil (aluminum food wrapping)