Skip to content
Melo Podcasts Home
CategoriesLanguagesFollowing

Episode notes

It's the epitome of summertime: there’s nothing like a cold, juicy slice of red watermelon on a swelteringly hot day. But, once upon a time, watermelons were neither red nor sweet—the wild watermelon has white flesh and a bitter taste. This episode, we scour Egyptian tombs, decaying DNA, and ancient literature in search of watermelon's origins. The quest for tasty watermelon continues into modern times, with the rediscovery of a lost (and legendarily sweet) varietal in South Carolina—and the Nigerian musical secret that might help you pick a ripe one. But the fruit's history has often been…

Gastropod

by Cynthia Graber and Nicola Twilley · English · Food & Cooking

Food with a side of science and history. Every other week, co-hosts Cynthia Graber and Nicola Twilley serve up a brand new episode exploring the hidden history and surprising science behind a different food- or farming-related topic, from aquaculture to ancient feasts, from cutlery to chile peppers,

More from Gastropod

  1. 23 Sep 2025 · 51 min

    Durian Delight and Feijoa Fun: Adventures in Banned, Forgotten, and Unusual Fruit

    This week on Gastropod, a feast of fruits! Specifically, feijoa and durian—and, if you haven’t heard of either, you’re not alone. Unlike the ubiquitous strawberry or banana, durian and feijoa are only popular in a handful of countries and almost unknown in the US, and we wanted to know why—especially because the people who love them really love them. For New Zealanders, like journalist Kate Evans, feijoa is *the* taste of home, even though it's almost forgotten in its original homeland, in Brazil and Uruguay. Meanwhile, the smell of the durian is so intense and distinctive—Julia Child…

  2. 9 Sep 2025 · 43 min

    Talking Taco

    Whether or not it's Tuesday, tacos pretty much always hit the spot—and not just in their homeland in Mexico. These days, the taco can be found all over the world, although it's acquired some strange new fillings along the way, from French fries to canned corn. It's hard to imagine something so universal having to be invented—but, in fact, the taco as we know it only emerged in the 1800s. In this episode, Gastropod talks taco with the experts, peering through the salsa-smudged veil of history to answer such questions as: What do Cornish miners and their lunchtime pasties have to do with the…

  3. 19 Aug 2025 · 51 min

    Tomatoes: A Love Story

    The tomato is Gastropod’s favorite flavor of summer, and we’re not alone: today, it’s the most popular vegetable on the planet, despite the fact that it's technically a fruit. But, until a couple of hundred years ago, the tomato wasn't really anyone's favorite. In South America, where the tomato originates, no one even bothered to domesticate it; in Mexico, the Aztecs seem to have preferred tomatillos; Renaissance Europeans thought this member of the nightshade family was practically poisonous; and, until the 1830s, most Americans considered them an “acquired taste.” Even in Italy, where the…

  4. 22 Jul 2025 · 51 min

    The Colorful Tale of Mexico's A-maize-ing Grain

    This might sound corny, but the relationship between maize and humanity is essential. We rely on corn—globally, more maize is grown than wheat or rice—and, in turn, corn is utterly dependent on us, to the extent that it's lost the ability to reproduce without our help. But corn's wild ancestor is such an unappetizing weed that, for decades, archaeologists couldn't believe today's juicy cobs were all descended from it. From this unpromising beginning, we've got a story that involves empires, vampires, and generations of women chained to the (literal) grindstone. Pass the popcorn and settle in…

  5. 6 Oct 2026 · 52 min

    Fibermaxxing FTW: Meet the Neglected Nutrient That's the Key to Health

    Move over protein, it's time to fibermaxx! Fiber has always been the neglected stepchild of nutrients: it's never been seen as essential, and some of its earliest enthusiasts were poop-obsessed oddballs. Take the inventor of cornflakes, John Harvey Kellogg. Inspired by the gorillas he saw at the zoo, he was fiber's first popular champion—but he also went around making people sniff his own perfect poops, and he believed that eating a plant-based, fiber-heavy, and condiment-free diet would help achieve his goal of reducing masturbation. It wasn't until surprisingly recently that scientists…

  6. 22 Sep 2026 · 48 min

    Eat Bison to Save Bison

    For tens of thousands of years, North America was bison country. Millions of these giant, shaggy animals—also known as buffalo—roamed from the far north to the Gulf and from the east coast to the west. They defined the land and its people: the animals provided food, clothing, and spiritual connection to the continent's Indigenous peoples—while their hooves, wallows, and dung patties shaped the prairie, providing essential habitat for plants, birds, amphibians, and more. But by the late 1800s, the bison had nearly been driven extinct. Today, cattle have largely taken their place, with huge…

  7. 8 Sep 2026 · 49 min

    Plant Milk Proliferation: Oat, Soy, Almond, and More, But Which Is Best?

    Cow milk is out, and plant milk reigns supreme. At least, that's how it feels in the supermarket these days, where the refrigerated section is full of "milk" made from oats, almonds, peanuts, coconuts, soy, macadamia nuts, pistachios, and even peas, with new plants being milked seemingly every day. But this proliferation had us wondering: who invented all these plant milks, and are they better for us and the planet than the OG cow-based beverage? To find out, we're exploring the surprisingly long history of plant-based milks—including why most civilizations preferred them over any animal's,…

  8. 18 Aug 2026 · 48 min

    So Hot Right Now: Why We Love the Chile Pepper

    Perhaps no other plant is as entwined with pain and pleasure as the chile pepper. But why does it burn—and why on earth do we crave that uncomfortable sensation? How did capsaicin's fungus-fighting, digestion-enhancing, and adrenaline-triggering powers convince early hunter gatherers in South America to fall in love with the chile's tiny berry ancestors, and then European colonists to spread chiles around the world? Plus, new insights into the rise of the “superhots,” chilehead competitions, and a murder-by-Carolina-Reaper attempt right here on team Gastropod. Who survived to tell the tale?…

  9. 4 Aug 2026 · 45 min

    Salad Days: A Story of Science, Sexism, and Jell-O

    If leafy greens and a little vinaigrette is salad, and chicken with mayo is salad, and vegetables in Jello-O are ALSO salad… What exactly is salad?! That's the big question we're tackling this episode—and it takes us down some unexpected rabbit holes. Listen in now to hear how ‘scientific housekeeping’ and good-old-fashioned sexism made salad into women’s food, and how this led to boiled cucumbers, lettuce-cup prisons, and the emergence of the Jell-O salad. Plus: the rise and fall of the great American salad bar (RIP), and why that plastic bag of mixed salad greens is the most high-tech item…

  10. 21 Jul 2026 · 51 min

    Where There's Smoke, There's...Whiskey, Fish, and Barbecue!

    As anyone who’s spent time by a crackling campfire or a barbecue pit can attest, the scent of smoke is unmistakable—and surprisingly mysterious. Smoke clings to clothing but vanishes in the breeze. You see it, but you can’t hold it. It’s fantastic in whiskey and terrible in toast. So what exactly is smoke—and what does it do to our food and drinks? What’s the difference between cold and hot smoked salmon—and what's a red herring? Is Liquid Smoke made from real smoke? And how did barbecue— smoked meat, cooked low and slow—become a uniquely American tradition? Listen in to find out! (encore)…

Every episode of Gastropod →

Take it with you

The Melo app keeps playing with the screen off, works in the car and on your watch, wakes you to your station, and browses the whole catalogue offline. Free, no ads, no account.

Get it on Google Play