When Ruben Rausing invented the revolutionary Tetra Pak in 1951, what unique insight inspired his packaging innovation?

In the world of packaging innovations, some breakthroughs have fundamentally changed how products reach consumers and extended their shelf life dramatically. The Tetra Pak revolutionized liquid food packaging and distribution worldwide. This trivia explores the fascinating origin of this transformative invention that changed the food industry forever and made safe food accessible globally without refrigeration.

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He observed that a tube of toothpaste could be formed, filled, and sealed in one operation, inspiring a similar approach for milk
He was inspired by origami paper folding techniques to create a package that used minimal material while providing structural strength
He discovered a new plastic polymer that could simultaneously block light, oxygen, and bacteria while remaining flexible
He adapted military ration packaging techniques developed during World War II for civilian food preservation