Gastropod - podcast cover

Gastropod

Cynthia Graber and Nicola Twilleygastropod.com
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, and from microbes to Malbec. We interview experts, visit labs, fields, and archaeological digs, and generally have lots of fun while discovering new ways to think about and understand the world through food. Find us online at gastropod.com, follow us on Twitter @gastropodcast, and like us on Facebook at facebook.com/gastropodcast.
Last refreshed:
Follow this podcast in the Metacast mobile app to refresh it and see new episodes.
Download Metacast podcast app
Podcasts are better in Metacast mobile app
Don't just listen to podcasts. Learn from them with transcripts, summaries, and chapters for every episode. Skim, search, and bookmark insights. Learn more

Episodes

The Buzz on Honey

Honey seems like a simple, comforting food, slathered on toast, spooned down to soothe sore throats, and beloved of bears, both plush and real. In reality, this sticky combination of bee spit and evaporated nectar is a powerful and ancient ingredient. For much of history, honey was humanity’s main source of sweetness, as well as our first vehicle for getting drunk. Unlike table sugar, honey also comes in an infinite variety of textures and flavors, influenced by the two million blossoms from whi...

Nov 15, 201641 min

What is Native American Cuisine?

Pasta, sushi, tacos, samosas, and pad thai: In the U.S., enthusiastic eaters will likely be able to name traditional dishes from a wide variety of cuisines around the world. But most of us couldn’t name a single Native American dish from any one the vast network of tribes, cultures, and cuisines that spread across the U.S. before Europeans arrived. Today, farmers, activists, and chefs are trying to change that. They’re bringing back Native foods—not just to teach all Americans about the indigeno...

Nov 01, 201641 min

Counting Fish

This week, we are taking on one of the universe’s great mysteries: how many fish are in the sea? If you stop to think about it, it seems almost impossible to figure out how many fish there are—after all, they’re basically invisible, not to mention constantly moving. But how else are we to know how many we should take out to eat? Join us as we set sail to figure out how we count fish—and why it matters. Learn more about your ad choices. Visit podcastchoices.com/adchoices...

Oct 04, 201643 min

Seaweed Special

Seaweed farming is booming: the global harvest has doubled in the past decade, according to a new report from the United Nations University, and it’s now worth more than all the world’s lemons and limes. Most of that seaweed ends up in our food, though there is a growing market in seaweed-based cosmetics and drugs. So what does a seaweed farm look like? How does it help restore the ocean? And what can you do with kelp in the kitchen, other than wrap sushi? Join us for a conversation with Bren Sm...

Sep 13, 201627 min

The Salt Wars

Salt is a magical substance. It reduces bitterness, enhances sweetness, boosts flavor, and preserves perishable foods. Without it, we would die: the human body can’t make sodium, but our nerves and muscles don’t work without it. It was considered rare until quite recently, so it’s hardly surprising that, throughout history, salt has been the engine behind empires and revolutions. Today, there’s a new battle in the salt wars, between those who think that we eat too much of it and it’s killing us—...

Aug 23, 201640 min

Kombucha Culture

If you haven’t tasted kombucha yet, you probably will soon. The sour-sweet, fizzy, fermented tea is becoming ubiquitous in trendy cafes, workplaces, and health food stores across America. Where did it come from, and how did it get so popular? And what in the world is the slimy, beige blob that produces it? From German POWs to Lindsey Lohan to a kombucha zoo at Tufts University, this episode explores the history and science of summer’s hottest drink. Learn more about your ad choices. Visit podcas...

Aug 08, 201641 min

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. Learn more about your ad choices. Visit podcastchoices.com/adchoices...

Jul 26, 201642 min

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. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Jul 12, 201645 min

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...

Jun 28, 201643 min

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? Learn more about your ad choices. Visit podcastchoices.com/adchoices

Jun 14, 201635 min

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. Learn more about your ...

May 31, 201643 min

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 t...

Apr 19, 201642 min

Grand Theft Food

It’s easy to assume that burglars and thieves are always after conventional valuables: cash, jewels, or high-end electronics. But some of the most memorable heists actually involve food. Inspired by Geoff Manaugh’s new book, A Burglar’s Guide to the City, we dive into the ancient history and detective science behind food crime. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Apr 05, 201638 min

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...

Mar 21, 201641 min

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. Learn more about your ad choices. Visit podcastchoices.com/ad...

Mar 08, 201636 min

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. Learn more about your ad choices. Visit podcastchoic...

Feb 23, 201648 min

The Food of Love

Throughout history, humans have attributed aphrodisiac powers to certain foods, from legendary lover Casanova’s diet of fifty oysters for breakfast to chocolate, the default Valentine’s Day gift for the uninspired. But how did such varying vegetables as asparagus, potatoes, and Peruvian maca acquire this reputation—and do any of them actually deserve it? Join us to find out the history and science behind edible aphrodisiacs in this NSFW episode of Gastropod. Learn more about your ad choices. Vis...

Feb 09, 201639 min

The End of the Calorie

For most of us, the calorie is just a number on the back of the packet or on the display at the gym. But what is it, exactly? And how did we end up with this one unit with which to measure our food? Is a calorie the same no matter what type of food it comes from? And is one calorie for you exactly the same as one calorie for me? To find out, we visit the special rooms scientists use to measure how many calories we burn, and the labs where researchers are discovering that the calorie is broken. A...

Jan 26, 201646 min

End-Of-Year Feast

Cheese science, cilantro phobia, and fork usage: we’ve covered it all on Gastropod. And, for our special end-of-year episode, we’re bringing you updates on some our favorite stories. Join us to find out what happened next… Ever wondered what happened to those researchers in Colombia who discovered they could grow five times more food by adding specially-bred microbes to the soil? Or what’s new in cheese microbiology? This is your chance to find out! To celebrate the end of 2015, we’ve created a ...

Dec 15, 201534 min

The Mushroom Underground

They’re a kingdom unto themselves, neither animal, vegetable, nor mineral. They count among their number both the world’s largest organism and millions of microscopic, single-celled creatures. And yet not only have they been an important—and delicious—food source for thousands of years, but they also seem to have powerful medicinal properties. What are these mysterious creatures? Fungi! Learn more about your ad choices. Visit podcastchoices.com/adchoices...

Nov 17, 201540 min

Peak Booze

Are you part of Generation Peak Booze? In this episode, we dive into the factors behind the ups and downs in alcohol consumption in the U.K. and the U.S. over the course of the twentieth century, we explore the long-term health effects of peak booze, and we get a sneak peek at the synthetic alcohol of the future. Cheers! Learn more about your ad choices. Visit podcastchoices.com/adchoices

Nov 03, 201535 min

Mezcal: Everything but the Worm

It’s nearly the Day of the Dead in Mexico, which gives us the perfect excuse to get familiar with the country’s national spirit: tequila. Or wait, should that be mezcal? And what’s the difference, anyway? In this episode of Gastropod, Cynthia and Nicky travel to Mexico to explore the history and science of distilled agave, and get tangled up in a complex story of controversies, clones, and culture. Learn more about your ad choices. Visit podcastchoices.com/adchoices...

Oct 20, 201545 min

The Good, The Bad, The Cilantro

On the surface, it’s just a leafy green herb. Its feathery fronds add a decorative note and a distinctive flavor to dishes across Latin America and Asia, from guacamole to phở. And yet cilantro is the most divisive herb in the kitchen, inspiring both deep dislike and equally deep devotion. What’s the history and science behind these strong reactions—and can cilantro disgust ever be overcome? Learn more about your ad choices. Visit podcastchoices.com/adchoices...

Oct 06, 201533 min

The Bitter Truth

It’s one of the five basic tastes, along with salty, sweet, sour, and umami. It’s also the least popular and the most mysterious. “That tastes bitter” is not usually a compliment, and yet scientists are increasingly concerned that by banishing bitter from our diets, we’re affecting our health in ways we don’t fully understand. In this episode, we get to know bitter a little better, finding good reasons and new ways to appreciate its complex charms. Learn more about your ad choices. Visit podcast...

Sep 22, 201545 min

The United States of Chinese Food

Wander into any town in the U.S., no matter how small and remote, and you’re likely to find at least one Chinese restaurant. In fact, there are more Chinese restaurants in America than McDonalds, KFC, and Burger King combined. And the food they serve is completely unlike anything you’ll find in China. In this episode of Gastropod, we ask one crucial question: why? From the Gold Rush to MSG, via the scandalous story of gender-bending Chinese restaurants in 1920s New York City, this episode of Gas...

Aug 25, 201544 min

The Whole Hog

Bacon, bratwurst, bangers, barbecue: these are just a few of the many ways people around the world enjoy feasting on pigs. Of all the domesticated animals humans consume, Sus scrofa domesticus is the most fascinating, the most divisive, and, arguably, the most delicious. In this in-depth conversation with author and historian Mark Essig, author of the book Lesser Beasts: A Snout-to-Tail History of the Humble Pig, Gastropod discovers the evolutionary source of the pigs’ intelligence (scientists h...

Aug 11, 201530 min

The Scoop on Ice Cream

It’s one of the most complex food products you’ll ever consume: a thermodynamic miracle that contains all three states of matter—solid, liquid, and gas—at the same time. And yet no birthday party, beach trip, or Fourth of July celebration is complete without a scoop or two. That’s right—in this episode of Gastropod, we serve up a big bowl of delicious ice cream, topped with the hot fudge sauce of history and a sprinkling of science. Grab your spoons and join us as we bust ice-cream origin myths,...

Jul 28, 201546 min

Crunch, Crackle, and Pop

“Sound is the forgotten flavor sense,” says experimental psychologist Charles Spence. In this episode, we discover how manipulating sound can transform our experience of food and drink, making stale potato chips taste fresh, adding the sensation of cream to black coffee, or boosting the savory, peaty notes in whiskey. Composers have written music to go with feasts and banquets since antiquity—indeed, in at a particularly spectacular dinner hosted by Duke Philip of Burgundy in 1454, twenty-eight ...

Jul 14, 201527 min

Field Recordings

Plants that can hear themselves being eaten. Microphone-equipped drones that eavesdrop on sick chickens. Lasers that detect an insect’s wing-beats from dozens of feet away. In this James Bond-inspired episode of Gastropod, we listen to the soundtrack of farming, decode the meaning hidden in each squawk, moo, and buzz, and learn how we can use that information to improve our food in the future. Tune in now for this special broadcast of the barnyard orchestra! Learn more about your ad choices. Vis...

Jun 30, 201531 min

The Cocktail Hour

Whether you sip it with friends, chug it before hitting the dance floor, or take it as a post-work pick-me-up, there’s clearly nothing like a cocktail for bracing the spirit. In addition to its peculiar history as a medicinal tonic, plenty of hard science lies behind the perfect cocktail, from the relationship between taste perception and temperature to the all-important decision of whether to shake or stir. What’s more, according to historian David Wondrich, mixology is “the first legitimate Am...

May 26, 201552 min
For the best experience, listen in Metacast app for iOS or Android