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The Food Chain
Rethinking the potato
The Food Chain
May 6, 2026

Potatoes are having a moment.

Once dismissed as dull, stodgy or even unhealthy, they’re now back, appearing on restaurant menus, in food magazines and across social media feeds.

But the story of the potato goes back much further.

In this episode, Ruth Alexander traces the journey of one of the world’s most familiar foods. From its origins millions of years ago to its place in today’s global food system.

AJ Shehata, senior sous chef at Fallow restaurant in London explains why the potato forces chefs to get creative.

At the Natural History Museum, botanist Sandy Knapp explains how the potato may have been born from a chance encounter between two wild plants in the Andes, an event that made it possible for potatoes to grow underground and spread across new environments.

We explore how the potato became a global food. Potatoes USA president Blair Richardson explains how demand continues to grow worldwide, and how the industry is working to reshape the potato’s image.

We ask whether the potato’s reputation is deserved. Nutrition scientist Candida Rebello shares research suggesting potatoes may be far more beneficial, and more misunderstood, than many people think.

And at the International Potato Center in Peru, scientist Julian Soto works with farmers to conserve thousands of native potato varieties. In the Andes, potatoes are not just a crop, they are part of culture, identity and family life.

From ancient origins to modern revival, this is the story of how the potato conquered the world, fell out of favour, and is now being rediscovered, just as new challenges begin to emerge.

If you’d like to get in touch with the programme, please email: [email protected]

Producer: Izzy Greenfield Sound engineer: Hal Haines Picture: Getty

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May 27, 2026
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Food tours are becoming one of the fastest-growing parts of the travel industry, with tourists increasingly choosing to explore cities and cultures through what they eat.

In this episode, Ruth Alexander explores the global rise of guided food experiences and the people building businesses around them.

In Manchester, food tour guide Julia Fairburn takes Ruth through some of the city’s best-known food spots, explaining how successful tours combine local history, storytelling and carefully paced eating experiences designed to leave visitors with lasting memories.

Eric Wolf, founder and executive director of the World Food Travel Association in Valencia, Spain, explains how food tourism has expanded worldwide into a multi-billion-dollar industry, as travellers increasingly seek authentic and immersive culinary experiences.

We also hear from Judith von Prockel, who began creating holidays centred around food experiences more than two decades ago, long before culinary tourism became mainstream. She reflects on how attitudes towards food travel have changed and why people are increasingly planning trips around what they want to eat.

And in Malaysia, Pauline Lee from Simply Enak describes the work involved in creating memorable food tours in a growing and increasingly competitive market, where guides must balance logistics, hospitality and cultural storytelling alongside the food itself.

From hidden local gems to global tourism trends, we explore why food tours have become big business — and what travellers are really looking for when they book them.

If you’d like to get in touch with the programme, please email: [email protected]

Producer: Izzy Greenfield Sound engineer: Andy Mills Picture: Simple Enak


26min 28sec



Rethinking the potato

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