Ever wondered why some spices burn your throat while others tickle your nose? Or why some of us live for spicy foods while others sweat at the mere thought of a habanero? How do pickles stay crunchy if they’re sitting in brine for weeks on end? And why do we have such different food preferences from our friends? We’re answering your food questions with chef and author Kenji López-Alt, author of the kids book Every Night is Pizza Night and co-host of The Recipe.

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