Which food packaging innovation was specifically created to solve the problem of milk spoilage during World War II, but was later adapted and popularized for a completely different beverage category?

Test your knowledge about innovative food packaging design that revolutionized consumer experiences and product marketing. Many packaging innovations we take for granted today were once groundbreaking solutions to significant challenges in food preservation, transportation, and consumer convenience. This poll explores a particularly influential packaging innovation that transformed an entire food category.

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Tetra Pak aseptic cartons (originally designed for milk preservation but later revolutionized juice packaging)
Ring-pull aluminum cans (initially developed for military milk rations but later adopted by the soda industry)
Vacuum-sealed glass jars (first used for emergency milk storage but later dominated the coffee market)
Bag-in-box technology (created for bulk milk transport but later became standard for boxed wine)