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Cooking is chemistry
The Food Chain
Jul 17, 2024

Why do we cook? To create flavour, to aid digestion and to release nutrients from our food.

Every time we fry, steam, boil, or bake a series of chemical reactions take place that are key to a dish’s success.

In this programme Ruth Alexander puts questions from the BBC World Service audience to Dr Stuart Farrimond in the UK, author of ‘The Science of Cooking’. Susannah and Aaron Rickard in Australia tell Ruth about the chemical reactions they discovered when researching their cookbook ‘Cooking with Alcohol’. And Krish Ashok in India, author of ‘Masala Lab: The Science of Indian Cooking’, explains the science behind the culinary wisdom of your parents and grandparents.

If you’d like to contact the programme email [email protected]

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

(Image: two young girls wearing goggles and aprons conducting a science experiment. Credit: Getty Images/ BBC)

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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



Cooking is chemistry

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