Eat This Podcast

[email protected] (Jeremy Cherfas)

Using food to explore all manner of topics, from agriculture to zoology. In Eat This Podcast, Jeremy Cherfas tries to go beyond the obvious to see how the food we eat influences and is influenced by history, archaeology, trade, chemistry, economics, geography, evolution, religion -- you get the picture. We don't do recipes, except when we do, or restaurant reviews, ditto. We do offer an eclectic smorgasbord of tasty topics. Twice nominated for a James Beard Award.

  • 14 minutes 3 seconds
    Old Modern Olive Oil in Provence

    An archway of the entrance to the 400-year-old Moulin Jean Marie Cornille, which is incised into the stone of the arch.

    A mixture of green and violet ripe olives held between cupped handsIn the previous episode, Carl Ipsen explained how the EU regulations for extra-virgin olive oil include tasting notes, and that if an oil has any of the forbidden flavours, it cannot be classified as extra virgin. So I was very surprised to read (in an issue of Edward Behr’s Art of Eating newsletter) about oils being produced in Provence that go out of their way to develop some — but not all — of the EU’s “defects”. Just as with modern extra virgin, these old-fashioned oils rely on up-to-date equipment and the skill of the miller.

    In this episode, the paradox of old-fashioned modern oil.

    Notes

    1. Old-Fashioned Olive Oil from Provence is the piece that prompted this episode. A few months back, Ed Behr had written about modern olive oil. Both contain fascinating tasting notes and more besides.
    2. Here is the transcript.
    3. I lifted some images from the Moulin Cornille website.

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    23 March 2026, 12:08 pm
  • 28 minutes 49 seconds
    The unstoppable rise of extra virgin olive oil

    Green and purple olives tumbling from a chute in an industrial olive mill

    An older man looking directly at the camera and smiling, against a black background. His hair is receding and he wears a striped scarf.Carl IpsenExtra virgin olive oil, as a formal classification, owes its existence to the disastrous state of Italian olive oil in the 1950s. At that time, esterification, a chemical process designed to extract the last drop of oil from the crushed olives, was permitted. It could also be used to extract oils from all manner of unlikely sources, and those too found their way into “olive” oil.

    When extra-virgin was first codified, only around 20% of oil qualified. Today, you would be hard pressed to find any oil on sale that does not claim to be extra virgin. Is that any guarantee of quality? Not really, says Professor Carl Ipsen, author of a forthcoming new book tentatively entitled A True History of Olive Oil. In it, he traces the evolution of olive oil from its early role as a lubricant of industrial development, when less than 1% was considered edible, to today, when it is almost exclusively used for food.

    Notes

    1. Carl Ipsen’s website contains links to some of his publications, including From Cloth Oil to Extra Virgin: Italian Olive Oil Before the Invention of the Mediterranean Diet, the essay that won the Sophie Coe Prize in 2021.
    2. Here is a transcript. Thank supporters of the podcast.

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    9 March 2026, 12:04 pm
  • 34 minutes 28 seconds
    The Food System Is Not Broken
    Headshots of Jan Dutkiewicz and Gabriel RosenbergJan Dutkiewicz (left) and Gabriel Rosenberg

    Book coverA lot of people who care about these things will tell you that the food system is broken. Jan Dutkiewicz and Gabriel Rosenberg insist that it is not. Bits of it may not work as well as we might like, but overall it delivers greater abundance, diversity, and nutrition at a lower cost than at any time in history.

    They argue the point at length in their new book Feed the People! Why industrial food is good and how to make it even better. Dutkiewicz and Rosenberg write engagingly and the book is a good read. And for those bits of the food system that are not working so well, they offer plenty of evidence-based recommendations that could help fix them.

    Notes

    1. Feed the People! is published by Basic Books.
    2. How the New Food Pyramid Fits Into the Broader Conservative Project is their nuanced look at the vexed topic of food guidelines in the United States.
    3. Gabriel Rosenberg has a newsletter, The Strong Paw of Reason, and there’s more of Jan Dutkiewicz’s work at The New Republic.
    4. Here is the transcript.
    5. Banner photos of the authors by Tim Atakora and Harris Solomon.

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    23 February 2026, 12:00 pm
  • 28 minutes 48 seconds
    Food Notes from an American Prison
    A retro picture postcard with a bird's eye view of the Lewisburg penitentiaryBird’s Eye View of United States Penitentiary Lewisburg, PA

    A smiling man with a bushy long white beard and spectacles. He is wearing a purple beret and a yellow down vest.One of the things I found most interesting about the previous episode, Cooking in Maximum Security was that prisoners in Italy not only cooked pretty elaborate meals, but that it was their right to do so. The ability to make at least some food for themselves seems to be taken for granted among prisoners in Italy. Not so in the United States, where Hollywood has made us all aware both that food is often the spark that ignites a riot and that some prisoners can get away with cooking much more elaborate meals. It surprised Edward Hasbrouck too, who shared memories of his brief time in a federal prison with a friend we have in common. He agreed to talk to me about his experiences of food in prisons gained at Lewisburg Federal Prison in the early 1980s, long before ramen became the bedrock of prison food systems.

    Notes

    1. Edward Hasbrouck’s main website contains loads of information about travel and more besides. The non-profit he mentioned is Papers, Please! – The Identity Project.
    2. I’m grateful to Peter Rukavina, who shared a link to Matteo Guidi’s episode, which is how Edward Hasbrouck found it and where he commented.
    3. Here is the transcript.
    4. Banner photo from an old postcard of Lewisburg Penitentiary.

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    9 February 2026, 12:00 pm
  • 23 minutes 59 seconds
    Cooking in Maximum Security

    Drawings of prisoners' inventions to cook in their cells.

    Portrait of a man looking directly at the camera. He has a beard and greyish hair and is wearing a patterned red scarf.Matteo GuidiAn extremely unlikely source (see note 3) tipped me off to the existence of Cooking in Maximum Security. In some respects, it is completely ordinary; a book of recipes — Starters, First Courses et cetera — along with handy tips for making the dishes. In others, it is eye-opening, because all the recipes, and the inventions necessary to make them, were contributed by prisoners in Italian maximum security prisons. Not only that, but cooking is an essential and integral part of the prisoners’ everyday lives. Matteo Guidi, an anthropologist and artist who teaches in Italy and Spain, guided the process of compiling the book.

    Notes

    1. Matteo Guidi has built a website for Cooking in Maximum Security that gives a lot more information.
    2. Matteo’s site has purchase details, but you might do better going directly to Half Letter Press.
    3. It was Cory Doctorow’s fabulous Pluralistic that sent me in search of Matteo Guidi.
    4. Banner and cover images by Mario Trudu, taken from the book.
    5. Here is the transcipt.

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    29 December 2025, 12:31 pm
  • 19 minutes 22 seconds
    Cash remains a most effective gift

    Villagers in Malawi learn about Give Directly

    Side by side portraits of two women. The one on the left wears glasses and has her hair tied back. The one on the right has loose hair. Both have open faces and  smile gently.Miriam Laker Oketta, left, and Esnatt Gondwe Matekesa

    I’m proud to revisit an episode from 2022, in which two country directors of the charity Give Directly told me how cash transfers in Rwanda and Malawi make a real difference to the lives of poor people there. The reason is Give Directly’s Pods Fight Poverty campaign, which aims to raise $1,000,000 for families in Rwanda. They’re more than 10% of the way there, and I hope this podcast can add to the total.

    The reason I made the episode in the first place was to ask whether cash enables people to improve their food security and nutrition. As I heard, it does, which is why I am happy to be part of the campaign.

    Notes

    1. Please consider making a donation.
    2. Miriam Laker Oketta and Esnatt Gondwe Matekesa both stressed how evidence guides Give Directly’s activities. The website’s section for research on cash transfers provides summaries.
    3. The specific study Miriam Laker-Oketta referred to is Benchmarking a WASH and Nutrition Program to Cash in Rwanda.
    4. Here is the transcript.
    5. There’s a lot of economics literature on the problems of gift giving. Tim Harford offered some guidance.

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    15 December 2025, 12:47 pm
  • A Berliner Speaks

    A banner from the original The Wednesday Chef showing a picture of some brown baked goods in a baking tin.

    Portrait of a woman with dark, shoulder length hair and glass, looking at the camera and smiling gently.Luisa WeissIt can be hard to remember the food blogs of yesteryear, when everyone knew everyone and the actual recipes were usually easy to find, unencumbered by endless cruft. Luisa Weiss discovered blogs relatively early, and soon became one of the most-read food bloggers. She was also part of a lively, supportive community, regularly reading and conversing with more than 40 other food bloggers. One thing led to another and she found herself first in cookbook publishing and then with a contract to write her first book, a memoir with food. Two cookbooks followed. We met in Berlin to talk about all that and more.

    Notes

    1. Here’s a link to Luisa Weiss’ website.
    2. She also, and this is both impressive and useful, managed to salvage all of the original The Wednesday Chef when it’s original host, Typepad, decided to close everyone down earlier this year.
    3. Here is the transcript.
    4. Banner image liberated from an archive copy of The Wednesday Chef.

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    1 December 2025, 11:04 am
  • 31 minutes 5 seconds
    A Fresh Look at Domestication

    A Neolithic sickle, with sharp flint chips embedded into a wooden handle with tar or bitumen.

    A portrait of a man with a trimmed beard and spectacles, in the background is a microscope out of focus.Robert Spengler IIISettled agriculture produced the food surpluses that enabled the development of civilisations. No wonder, then, that scholars have been keen to understand the origins of agriculture, as a way of starting to understand the origin of civilisations. The general view is that humans actively domesticated plants and animals, selecting the traits that made them more reliable producers of food. What if that’s all wrong? What if the traits that mark domestication are not the result of selection but instead an inevitable evolutionary response to changes in the environment? Changes wrought by humans, to be sure, but unconsciously and without any forethought.

    That’s the central thesis of a new book, Nature’s Greatest Success: how plants evolved to exploit humanity, by Robert Spengler III.

    Notes

    1. Nature’s Greatest Success: how plants evolved to exploit humanity is published by University of California Press.
    2. If you want more details but less than a book, Seeking consensus on the domestication concept by Spengler and colleagues is part of a journal issue devoted to domestication. There’s also the Spengler Lab website.
    3. Here’s the transcript.
    4. Image of a Neolithic sickle from the Museum Quintana

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    17 November 2025, 12:03 pm
  • 27 minutes 9 seconds
    Revolutions are Born in Breadlines

    A team of three horses draw a plough, circa 1920. Furrows to the right, unbroken earth to the left.

    Front cover of bookThe famine in the Volga Region in the early 1920s was a humanitarian disaster, but it kick started about a decade of agricultural cooperation between the Soviet Union and the United States. Agricultural experts from each country visited the other to teach and to learn, a series of exchanges documented by Maria Fedorova, assistant professor in the Department of Russian Studies at Macalester College in Minnesota, in a new book called Seeds of Exchange: Soviets, Americans, and Cooperation in Agriculture, 1921–1935.

    Apart from food aid and medical assistance from the US, the exchanges included material goods, like seeds and tractors, as well as information and experience, and were motivated as much by ideology and politics as by pressing humanitarian concerns.

    Notes

    1. Maria Fedorova’s book is Seeds of Exchange: Soviets, Americans, and Cooperation in Agriculture, 1921–1935.
    2. Seeds as Technology: The Russian Agricultural Bureau in New York and Soviet Agricultural Modernization, 1921–26 gives more information about Vavilov and Borodin’s organisation, while The Untold Story of “Radical Relief” to Soviet Russia has more on the American Tractor Unit.
    3. Here is the transcript.
    4. Podcast artwork from Бельтюков В. Public Domain.

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    4 November 2025, 5:59 am
  • 14 minutes 54 seconds
    The Spice Bag

    Shop front of the Chinese takeaway in Dublin with the word Sunflower and Chine symbols in yellow on a brown background. Inside the takeaway you can see two customers and a bright green neon strip. There are reflections in the window.

    The contents of a spice bag, showing chip, onions, green peppers and bits of presumably chickenIn 2008, the legend goes, staff at a Chinese takeaway in Dublin cooked themselves up a special treat after hours. Nothing too fancy, but tasty enough that soon their friends wanted the same. One thing led to another and today you can find something similar not only across Ireland but as far afield as New Zealand.

    That after-hours dish became the spice bag, and in many ways the story of the spice bag is the story of assimilation, innovation and widespread adoption that can be told about so many “immigrant” foods. The spice bag emigrated, came back home, and found new modes of expression among communities who took the same basic essentials on which to layer their own particular tastes of home.

    Notes

    1. I met John Mulcahy at the Food and Drink as Education Conference, which he helped to organise.
    2. John Mulcahy’s paper “A is for Aircháelán”: the case for compiling a compendium of food in Ireland offers a taste of the breadth and depth of information he has compiled.
    3. Here is the transcript.

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    20 October 2025, 11:30 am
  • 19 minutes 51 seconds
    Revisiting Historical Recipes

    People sitting at individual tables in a modern looking room. In front of them is a small apple pie that they are tasting and reporting on.

    Detail of a fruit pie from a Dutch still life by Willem Claesz. Heda, 1634

    After you’ve found an historic recipe, sourced appropriate ingredients, figured out the maddeningly imprecise quantities, and grappled with instructions that are often little more than a reminder for someone who already knows how to cook the dish, you’re left with an insoluble mystery: how should it taste? If you’re in search of some notion of authenticity, that is the ultimate stumbling block. There is just no way to know. Or maybe there is.

    Marieke Hendriksen of the Royal Academy of Arts and Sciences in Amsterdam and her colleagues recently published a paper outlining a procedure for approaching the taste of the past rigorously. After a thorough analysis of early cookbooks as well as medical texts and botanical treatises from the Low Countries, they settled on an apple pie from the 1669 De Verstandige kock.

    Dough
    Take wheat flour, butter, rosewater, sugar and some eggs, of each as needed.

    To make an apple pie the Wallonian way
    Take peeled apples the cores removed cook them in Rhenish wine well done, add butter, ginger, sugar, raisins, cinnamon, all cooked well together, then stir in the yolks of two eggs put it in your dough and bake in the Oven as above [i.e. “with fire from below and above”].

    After all the analysis and experimentation, though, there’s only one thing to do: taste the end result.

    Notes

    1. The published paper is Tasting the Past? Developing a Methodology for Researching Historical Tastes in Global Food History, which is behind a paywall, but …
    2. Here is the transcript.
    3. Banner photo courtesy Marieke Hendriksen. Cover photo detail from Still Life with Fruit Pie and various Objects, by Willem Claesz. Heda 1634, from the Museo Nacional Thyssen-Bornemisza, Madrid. This one has a lid, and may not be apple, but that’s OK.

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    5 October 2025, 10:23 am
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