Food Through the Lens of Science and History
Every day, at the end of service, restaurants throw away tons of entirely edible food: heaps of pastries and whole loaves of bread, vegetables chopped but not cooked, noodle dough, fish off-cuts, and more. An estimated 20 billion meals's worth of still edible food overall is tossed every year here in the US, and more than 85 percent of it ends up in the landfill. Meanwhile, more than one in ten Americans are food insecure. So why is it so hard to keep all of that perfectly good food out of the trash and get it onto people’s plates instead? This week, we’re taking a deep dive into the dumpster (not literally!), to explore the most innovative and surprising new solutions to this toughest of food challenges, including the wizards transforming everything from stale bagels to gallons of banana cream concentrate into a delicious dinner. Did someone order meals, not methane? Oui chef!
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It’s already begun: that time of the year now known across the land as Decorative Gourd Season. Squash are everywhere—carved into jack o’lanterns on front porches, adorning our sideboards and porches with strange shapes and autumn colors, and of course, baked into pies for fall celebrations. But get ready to rethink squash, because despite their slightly cheesy House Beautiful vibe and family-friendly pumpkin patch associations, they are—and we quote—"the most interesting plants in the world." Join us this episode as we explore our surprisingly long entanglement with the cucurbit family, from its star role as the very first plant domesticated in the Americas to the can of Libby's behind nine out of every ten pumpkin pies. Along the way, we figure out what on Earth the difference actually is between a squash and a pumpkin, and we get a sneak peek into the weird and wonderful world of giant pumpkins, where growers compete to break the two-ton barrier with fruits the size of a compact car.
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The produce section of most American supermarkets in the 1950s was minimal to a fault, with only a few dozen fruits and vegetables to choose from: perhaps one kind of apple, one kind of lettuce, a yellow onion, a pile of bananas. Today, grocery stores routinely offer hundreds of different fruits and vegetables, many of which would be unrecognizable to time travelers from a half century ago. What changed, and how did Americans learn to embrace spaghetti squash, sugar snap peas, and kiwi fruit? This episode, we tell the story of the woman behind this transformation: Frieda Caplan, the Queen of Kiwi. (Encore)
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School’s back in session, and kids are boarding the bus with lunchboxes in tow. Many of them contain sandwiches stuffed with turkey and ham slices, bologna, even salami—but where did these staples of the lunch break, not to mention the charcuterie platter, come from? Long before the 1900s meat-cute that birthed the deli sandwich, preserved meats were a standby in human diets: from dried yak cured in salt in the Himalayas, to pork fermented into salami in Italy, to beef pressed in the saddle and pickled in horse sweat in Central Asia, people all over the world invented ways to make meat inhospitable to microbes, more portable—and even more delicious! But, in recent years, these meats have gotten a bad name: in 2015, the World Health Organization even labeled them a carcinogen. So should you chuck the corned beef for the sake of your health? This episode, join us for a deep dive on the science behind whether your charcuterie could kill you—plus, the story of how cured meats became a staple of American diet and culture, thanks to German immigrants and Jewish delis, military-manufactured meat glue, and some truly orgasmic sliced pastrami on rye.
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About ten years ago, insects were constantly being hyped as the future of food. Headlines proclaimed that, within the decade, everyone would be eating bugs as part of their daily diet—and saving the planet in the process. But while the buzz on edible insects hasn’t completely turned to crickets, the ento-revolution hasn't proceeded exactly as planned. In the Western world, insects are not yet what's for dinner, and, even in parts of the world where bugs are a traditional and treasured part of the cuisine, their consumption is on the decline. So what's the deal? Can edible insects really help solve climate change and world hunger? And, if so, what's stopping us from jumping on the bug bandwagon? Listen in this episode as we debunk insect conspiracy theories and sexist archaeology, savor tangy ants and a cicada bonanza, and visit Madagascar to tell the heart-warming tale of how a bacon-flavored bug is helping feed villagers, while saving an adorable primate.
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When you buy a bottle of rum in the United States, by law nearly all the federal taxes on that rum must be sent to Puerto Rico and the U.S. Virgin Islands. It's an unusual system that Congress designed decades ago to help fund these two U.S. territories. In 2021 alone, these rum tax payments added up to more than $700 million. Puerto Rico and the Virgin Islands split the money according to how much rum each territory produces. And the territories produce a lot of it — especially Puerto Rico, which single handedly supplies the majority of the rum that Americans drink. But in 2008, the U.S. Virgin Islands pulled off a coup. It convinced one of the largest rum brands in the world, Captain Morgan, to abandon Puerto Rico and to shift its operations to the tiny island of St. Croix. This was the beginning of the Rum Wars. Listen in to the story of how this war turned the two territories into bitter rivals—and put hundreds of millions of U.S. taxpayer money in the pockets of big liquor companies. (Guest episode)
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Guest episode: In this episode we introduce you to a part of our bodies that was invisible to Western scientists until about five years ago; it’s called "the interstitium," a vast network of fluid channels inside the tissues around our organs that scientists have just begun to see, name, and understand. Along the way we look at how new technologies rub up against long-standing beliefs, and how millions of scientists and doctors failed to see what was right in front (and inside!) of their noses. We also find out how mapping the anatomy of this hidden infrastructure may help solve one of the fundamental mysteries of cancer, and perhaps provide a bridge between ancient and modern medicine.
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You asked, and we’re answering—again! Ask Gastropod returns to answer some of our listeners’ most pressing culinary queries: how did elaborate, expensive cakes become the standard dessert for weddings? Did the deep fried cornmeal blobs known as “hush puppies” get their name from Confederate soldiers or racist stories from the plantation-era South? And could a trendy "new" variety of milk (that's actually ancient) allow the dairy-intolerant to snarf down cheese and ice cream without digestive consequences? This episode, we’re diving deep on the science, dispelling some myths, and correcting the historical record with the help of a team of experts. Listen in now!
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It's not your imagination, food allergies are really on the rise. One recent study found that severe allergic reactions to food have increased by more than 300 percent over the past decade. And they don't just affect Americans or kids—they're on the rise in adults around the world. Even pets are getting food allergies. So what's going on? Why would your body decide that food—something that's actually essential to keeping you alive—needs to be attacked like a dangerous invader? And why would we evolve a defense mechanism that can end up killing us? This episode, we've got the history and the latest scientist on food allergies: what they are, what causes them, how they're different from food intolerance and sensitivity, and what we can do about them. Join us on a wild journey from ancient Pharoahs to the future of medicine, via jellyfish, Calvin Coolidge, and "rose fever," as we figure this all out.
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Today, it’s a breakfast staple, but, as recently as 1960, The New York Times had to define it for readers—as “an unsweetened doughnut with rigor mortis.” That’s right, this episode is all about the bagel, that shiny, ring-shaped, surprisingly dense bread that makes the perfect platform for cream cheese and lox. Where did it come from? Can you get a decent bagel outside New York City? And what does it have in common with the folding ping-pong table? Come get your hot, fresh bagel science and history here! (encore edition)
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For as long as we’ve been making Gastropod, co-host Nicky has also been working on another project: writing a book all about refrigeration. Well, time to pop the champagne you’ve had stashed in the icebox, because that book comes out June 25—and we’re giving Gastropod listeners an exclusive preview! This episode, Cynthia and Nicky talk about how a high school dropout's get-rich-quick scheme, some deadly explosions, and lots and lots of beer brought us the humming boxes of cold now ubiquitous in the modern kitchen—and how the proliferation of this portable, on-demand winter has transformed our food (not always for the better) while heating up our planet. It's almost impossible to imagine living without a fridge, but Nicky’s book totally changed the way we look at preserving food. Is there a better way? Listen to find out, and for the rest of the story, be sure to pre-order Frostbite: How Refrigeration Changed Our Food, Our Planet, and Ourselves!
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