Keeping Kosher: When Jewish Law Met Processed Food

Roughly two percent of Americans are Jewish, and only a small fraction of them keep kosher. Yet between a third and a half of all packaged food in an American supermarket has a kosher label on it. How did kosher law become big business? Join us this episode as we find out how ancient Jewish dietary laws have shaped and been shaped by the science of processed food, from Coca-Cola to Jell-O and beyond.

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Poultry Power: The Fried Chicken Chronicles

Juicy, crispy, crunchy...fried chicken is undoubtedly delicious. But it's also complicated, in ways that go far deeper than the science behind that perfect crust. From slavery to entrepreneurship and from yard fowl to Gospel bird, the story of fried chicken is filled with challenging contradictions. Grab a drumstick and listen in.

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Outside the Box: The Story of Food Packaging

The invention of food packaging is one of humanity's greatest achievements. It may seem hard to imagine today, but the first clay pots made the great civilizations of the ancient world possible, while paper's first use, long before it became a surface for writing, was to wrap food. But packaging's proliferation, combined with the invention of plastics, has become one of our biggest environmental headaches. In this episode, we explore the surprising history of how our food got dressed—and why and how we might want to help it get naked again.

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Who Invented the Cherry Tomato?

In the 1960s, cherry tomatoes were nearly impossible to find in the grocery store. By the 1990s, it was hard to get a salad without them. Somehow, within a couple of decades, the tiny tomatoes had taken over. Where did they come from? And who lay behind their sudden rise to glory?

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Everything Old is Brew Again

Pull up a bar stool and prepare to open both your mind and your palate: it's time to meet beer before it settled down into the fizzy brown brew we know and love today. The ales in this episode of Gastropod represent the future of flavor, but take their inspiration from the pre-industrial pint. Join us as we meet brewers who are making beer with local herbs, roast chicken, and yeasts scraped off the skin of wild blueberries—and then taste the surprisingly delicious results.

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Museums and the Mafia: The Secret History of Citrus

A slice of lime in your cocktail, a lunchbox clementine, or a glass of OJ at breakfast: citrus is so common today that most of us have at least one lurking on the kitchen counter or in the back of the fridge. But don't be fooled: not only were these fruits so precious that they inspired both museums and the Mafia, they are also under attack by an incurable immune disease that is decimating citrus harvests around the world. Join us on a historical and scientific adventure, starting with a visit to the ark of citrus—a magical grove in California that contains hundreds of varieties you've never heard of, from the rose-scented yellow goo of a bael fruit to the Pop Rocks-sensation of a caviar lime. You'll see that lemon you're about to squeeze in a whole new light.

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Caffeine: The World’s Most Popular Drug

A tablespoon of it will kill you, but most of us feel like death without it: we're talking about caffeine this episode. Inspired by a listener question — does green tea have more or less caffeine than black? and what about yerba mate? — Cynthia and Nicky explore the history and science of the world's most popular drug. Listen in as we discover the curious effect of birth control pills on how our bodies process it, calculate how much of an edge it gives athletes, and learn what dolphin dissection and the American Constitution have to do with each other, and with caffeine.

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The Maple Boom

Many people only think of maple syrup at the breakfast table, when they're facing down a stack of hot, fluffy pancakes or some French toast. They're missing out. Maple is undergoing a major boom, newly ascendant in beverage aisles, Asian kitchens, and even biomedical research laboratories. In this episode, we visit sugar shacks and talk to the experts to find out why tree sap is so hot right now—and whether it can live up to the hype.

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First Foods: Learning to Eat

How do we learn to eat? It may seem like an obvious question, but it's actually quite a complicated process. Who decided that mushed-up vegetables were the perfect first food—and has that always been the case? What makes us like some foods and hate others—and can we change? Join us to discover the back story behind the invention of baby food, as well as the latest science on flavor preferences and tips for how to transform dislikes into likes.

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