Which food industry innovation, first widely implemented in the 1950s, revolutionized product marketing by allowing consumers to try products before purchase?

In the competitive world of food marketing, certain innovations have completely transformed how products reach consumers. This poll tests your knowledge about a groundbreaking marketing technique that changed how consumers experience food products before purchase. The innovation discussed here represented a pivotal moment in retail food history and influenced countless marketing strategies that followed.

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Free product samples in supermarkets
Television cooking demonstrations
Scratch-and-sniff food advertisements
Money-back guarantee programs