Home  >  The Food Chain  >  The preservers
The Food Chain
The preservers
The Food Chain
Jan 11, 2024

Humans have preserved food to make it last longer for thousands of years. In this programme Ruth Alexander learns about different methods of food preservation used around the world, including pickling, dehydrating and canning.

Food historian and writer Darra Goldstein in the US explains the history of this art. Yukari Sakamoto is a trained chef and sommelier who leads food tours in Tokyo, she explains why people in Japan take the idea of a well stocked pantry seriously. And Usha Prabakaran in Chennai, India talks about her love of the Indian pickle and its role in Indian cuisine.

There are some important safety considerations if you want food to last longer, particularly if you want to store it at room temperature. There is a risk of botulism if food is not heated to the correct temperature for the correct amount of time, particularly for foods that are low in acid. Ruth hears about the laboratory testing done by Carla Schwan, Director at the National Home Food Preservation Centre based in Georgia, United States which tests recipes that can be used safely for home preserves.

Canning – storing food in glass jars and heating it – has seen a resurgence recently. Some enthusiasts refer to themselves as ‘rebel canners’, which in general refers to people wanting to use recipes other than those that have been lab tested and approved. The ‘Canning Diva’, Diane Devereaux a food preservation educator and blogger in the United States explains what motivates rebel canners, and the recipes she thinks are missing for consumers.

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

Presented by Ruth Alexander.

Produced by Beatrice Pickup.

(Image: a selection of foods preserved in jars of different shapes and sizes. Credit: Getty Images/BBC)

More Episodes
Jun 11, 2026
Can music change the way food tastes?

Music is part of the backdrop to millions of meals every day. But what if it is doing more than simply creating atmosphere?

In this episode of The Food Chain, Rumella Dasgupta explores the growing evidence that sound can shape the way we experience food and drink. From scientists studying how the brain combines hearing and taste, to chefs designing dishes around playlists, we ask whether music has become an ingredient in its own right.

Chef Gaggan Anand explains why music sits at the centre of his restaurant in Bangkok, where sound, lighting and food are carefully choreographed into a single experience. Cognitive neuroscientist Ophelia Deroy shares research showing how music can influence our perception of sweetness, bitterness and texture, and explains why flavour is far more than what happens on the tongue.

We also hear from Ola Sars, founder of the business music platform Soundtrack, whose company helps restaurants, cafés and hotels tailor the music they play. He shares research suggesting that the right soundtrack can influence customer behaviour and even affect sales.

But not everyone is convinced. Dan Keeling, co-owner of London's Noble Rot restaurants and a former music industry executive who signed artists including Coldplay and Lily Allen, explains why he has chosen not to play music in his dining rooms at all.

From silent restaurants to carefully curated playlists, from neuroscience labs to commercial dining rooms, we explore the increasingly important role sound plays in the way we eat.

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


26min 28sec


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 preservers

--:--
--:--