For thousands of years, there have been four basic tastes recognized across cultures. But thanks to Kumiko Ninomiya (a.k.a. the Umami Mama), scientists finally accepted a fifth. Could there be even more? (First published in 2022.) Guests: Kumiko Ninomiya, biochemist and former director of the Umami Information Center; Gary Beauchamp, former director of the Monell Chemical Senses Center; Sarah Tracy, historian of science; Camilla Arndal Andersen, neuroscientist; Paul Breslin, professor at Rutgers University For show transcripts, go to vox.com/unxtranscripts For more, go to vox.com/unexplainable And please email us! [email protected] We read every email. Support Unexplainable by becoming a Vox Member today: vox.com/members Learn more about your ad choices. Visit podcastchoices.com/adchoices

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“What did the council decide on item 42?” — answered with the speaker and the moment.