Which popular consumer food product was originally developed during WWII for military use but became a retail sensation after being repurposed for the civilian market?

Military history has influenced consumer products in unexpected ways! Many food items we take for granted today were originally developed for soldiers on the battlefield. Military rations have evolved from simple hardtack to complex Meals Ready to Eat (MREs), with numerous innovations crossing over into civilian retail markets. Test your knowledge about how military food technology has shaped the products on our grocery store shelves and changed consumer expectations for convenient, long-lasting foods.

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SPAM
M&M's
Instant Coffee
TV Dinners