How did the U.S. military create a pizza that soldiers could eat on the battlefield? Our friends at the podcast Proof from America’s Test Kitchen follow the five-year journey to create the world's most shelf-stable pizza. In the process, they learn about ration bars made with ultrasonic technology, and how to keep cheese the right color in extreme conditions.

The Sporkful production team includes Dan Pashman, Emma Morgenstern, Andres O'Hara, Nora Ritchie, Jared O'Connell, and Julia Russo.

Transcript available at www.sporkful.com.

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