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Microwaved food is convenient, but not as satisfying as fresh-cooked fare. Kraft Heinz has a solution: the 360Crisp process, which debuted with a new product, Lunchables Grilled ­Cheesies. The sandwich comes in a paperboard container with a susceptor that, when microwaved, directs heat to all the right places, leaving no bite undercooked or singed. “You have that perfectly crispy outside, that gooey melty inside, and none of that sogginess or dryness,” says Alan Kleinerman, vice president of disruption.

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