The Food Chain

How do you eat well in freezing the cold? When you live in some of the coldest places on earth, what you eat, and how much, really matters.

Ruth Alexander hears advice from a scientist, who goes on expeditions to study the body’s reaction to sub-zero temperatures, and talks to people living in the Arctic circle.

What do they cook, and what is their favourite food and drink to keep them warm in the winter? She hears how they find fresh ingredients when all around the ground is frozen – and how freezing temperatures can spark culinary creativity.

Producer: Julia Paul and Lexy O'Connor
Sound engineer: Hal Haines

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Ruth Alexander explores the art and etiquette of tipping and how it varies around the world.

She hears from staff and customers in countries where tipping is essential and in places where it can be taken as an insult.

Ruth also talks to servers and bartenders about what your gratuity means to them and how tipping can sometimes bring out the best and worst in their customers.

Producer: Lexy O’Connor and Rumella Dasgupta

Sound mixing: Hal Haines

Image: A jar full of coins and notes has the word “tips” written on it. It floats on a red background. Credit: Nikola Stojadinovic / Getty

What are the highs and lows of waiting on tables? Ruth Alexander speaks to restaurateurs from London, New York and Mumbai to find out about the inner workings of one of the hardest jobs in the business.

Ruth hears from French celebrity Maitre D, Fred Siriex, Mumbai based restaurateur Gauri Devidayal and Michael Cecchi-Azzolina, the New York based author of Your Table Is Ready.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

Image: The torso of a waitress, carrying two plates of food, against a purple background. Credit: Maria Korneeva/Getty Images)

From pizza delivery to emergency aid, are autonomous aircraft the future?

Ruth Alexander looks into whether drones are a feasible alternative to delivery drivers and traditional air drops.

We hear how fast food and groceries are being delivered into suburban back gardens in Helsinki and Dublin and to a waterside collection point in Hong Kong. Is this technology something we might see everywhere soon? Ruth looks at its advantages and limitations and finds out how drones are carrying essential food to remote communities in Madagascar.

Taking part were Danny Vincent, BBC Hong Kong reporter, Ville Lepalä, the CEO and co-founder of Huuva foodhall, Bobby Healy, the CEO of Manna Aero, Santanu Chakraborty, chief executive officer of Bal Raksha Bharat – Save the Children India and Hedley Tah from the United Nations Humanitarian Air Service, which is run by the World Food programme.

Produced by Rumella Dasgupta.

Image: A drone is flying against a stylised blue sky background. It is holding a white box which says Food Delivery on it in black letters. (Credit Getty Images/ sarawuth702)

Turmeric has been revered for thousands of years, not just for its mellow taste but for its golden colour and its supposed health giving properties.

Rumella Dasgupta looks at its history, its uses in food and medicine and talks to scientists who have studied the spice. She finds out what they've learned about its fabled medicinal qualities and whether it's really worth paying for expensive turmeric lattes and turmeric supplements.

Featuring Dr Kathryn Nelson, Prof Amit Garg, Ragini Kayshap and Seema and Sarla Nagpaul.

If you would like to get in touch with the show, please email thefoodchain@bbc.co.uk

Producer: Lexy O'Connor
Sound mix by Annie Gardiner

(Image: a teaspoon of golden turmeric powder sits on a spoon, against a bright green background. Credit: G/ Getty Simonkr)