Which food company first introduced the resealable 'Stay-Fresh' zipper packaging for sliced cheese that revolutionized cheese storage and became an industry standard?

Test your knowledge about one of the most innovative food packaging designs that revolutionized an entire product category. This packaging innovation not only solved a major consumer pain point but also became an instantly recognizable brand signature that competitors have tried to imitate for decades. How well do you know this packaging breakthrough that changed how we interact with a popular food item?

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Kraft Foods with their Kraft Singles packaging
Sargento with their 'Slide-Rite' seal technology
Tillamook with their 'Fresh-Lock' system
Borden Cheese with their 'Zip-Seal' packaging