Which civilian food company created the K-Ration packaging used by U.S. troops during World War II, later applying these preservation techniques to their commercial products?

Combat rations have evolved dramatically since the early 20th century, with packaging innovations driving much of this change. From Civil War hardtack to modern MREs (Meals Ready to Eat), military food packaging has balanced preservation, portability, and palatability under extreme conditions. Major companies have partnered with defense departments worldwide to create specialized packaging solutions that would later influence civilian food technology. Test your knowledge of these military-civilian product crossovers!

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Wrigley Company
Hershey Chocolate Company
Kellogg's
H.J. Heinz Company