Home  >  The Food Chain  >  The Invisible Ingredient
The Food Chain
The Invisible Ingredient
The Food Chain
Aug 22, 2018

We’re killing time on The Food Chain this week.

From crops that grow in just eight weeks, to whole meals that can sit on the shelf at room temperature for three years, at every stage of our food chain it seems, humans are battling against the clock, in the name of convenience, money or science.

Emily Thomas asks what we lose in our attempt to eliminate this invisible ingredient.

(Picture: Hand holding invisible object, Credit: Getty Images)

More Episodes

May 27, 2026
The business of food tours

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



The Invisible Ingredient

--:--
--:--