The Food Chain

Street food is one of the many charms of South East Asia, but there are signs this much-loved way of life and much-needed source of food is on the decline. We visit three of the region’s best-known street food areas – Bangkok, Singapore and Penang – to find out why. A food hawker in Bangkok tells us his family’s stall, like thousands of others, was forced off the streets as part of a government move to clean up the city. Plus, Graihagh Jackson hears how these changes could have serious consequences for the city’s residents, many of whom have no kitchens at home and rely on cheap street food for their daily meals.A family of street food vendors in Singapore, where the trade has been moved into enclosed food courts, tells us it’s long, hard and poorly-paid work, and that young people often have no interest in carrying on the tradition. And in Penang, Malaysia, a government move to preserve local dishes by banning foreign workers may have backfired by removing a source of cheap labour vital to keeping many vendors afloat.(Picture: A street food vendor in Bangkok, Thailand. Credit: Getty Images/BBC)

Fried chicken is loved the world over - it’s the most popular dish in global fast food, according to industry analysts, eclipsing even the burger. From Senegal to Singapore many countries have their own native twist on it, whether it’s covered in sesame seeds, battered in tempura or finished with a dunk in aioli. But what is it that makes fried chicken so appealing to so many different cultures?Graihagh Jackson speaks to three fried chicken shop owners from South Korea, the UK and South Africa to find out how battered poultry has come to achieve such global dominance. They explain how different cultures like their birds fried, how competitive the industry can be, and go deep into the science behind the perfect bite.We also learn how hard it can be to convince customers that fried chicken should be viewed as a gourmet meal, and priced accordingly, rather than a cheap, unhealthy snack. And how important is it to source the best possible meat, without going bust?Plus, is the smell of a deep fat fryer any good for your love life?(Picture: A hand holding a piece of fried chicken. Credit: Getty Images/BBC)

Why are companies blasting bottles of alcohol and crops into space? Are they just publicity stunts, or are there some serious scientific discoveries to be made? We explore the potential of space when it comes to producing food and drink - not for astronauts or the first settlers on Mars, but by developing crops that could be more productive and more resistant to climate change here on Earth. A NASA scientist tells Graihagh Jackson how microgravity on the International Space Station could be the key to unlocking the potential of many Earth crops, and a serial entrepreneur explains why he’s investing hundreds of millions of dollars in the idea in a bid to save Bordeaux wine. Plus, we find out how space science has already helped us grow indoor crops and develop more efficient and environmentally friendly fertilisers.(Picture: Planet Earth, composed by NASA images. Credit: Getty Images/BBC)

Have you ever looked at the ingredients on your microwave meal and wondered what dextrose and sodium nitrite are doing in your dinner? These are some of the many chemicals used in processed foods - some are found in nature, but others can also be made in a laboratory. They’re used by food manufacturers for many reasons, from making sure rice doesn’t go mouldy, to ensuring yoghurt is low fat. But has the industry gone too far, adding too many synthetics to our food? Graihagh Jackson meets three food scientists to find out what they're adding to our food, and why. Does it matter whether we use 'natural' or synthetic substances, why are some added ingredients not listed on the label, and how do these scientists ensure they are safe?Plus, how do you bake cookies at 30,000 feet, and what does space smell like?(Picture: A scientist picking up a plant leaf. Credit: Getty Images/BBC)

Nobuyuki Matsuhisa has more than 40 restaurants spread across six continents, many of them frequented by some of the world’s top celebrities. His business partner and friend is Hollywood star Robert De Niro, and he’s even been in a handful of movies himself. Nobu, as he's known, is one of the most famous chefs in the world, but his early life and career were marked by tragedy and disaster – his father died in a motorcycle accident when he was eight, and one of his first restaurants burnt to the ground just weeks after opening, leaving him broke and contemplating suicide. But the sushi master eventually plucked up the courage to give the restaurant business one last shot, and his eponymous restaurant in Beverley Hills, California, was a huge success. He tells Graihagh Jackson the story of his life through five of his most memorable dishes, from the miso soup whose aroma would wake him most mornings as a child, to the dish that caught the attention of Robert De Niro and eventually catapulted him to global fame.(Picture: Nobu Matsuhisa. Credit: BBC)

Gluten-free is booming – it’s become a multi-billion dollar industry, supermarket aisles are crammed with products, with a number of high-profile celebrities endorsing their health impacts. But this is much more than a fad diet - doctors are seeing a growing number of patients who have serious problems with this protein, most commonly found in wheat products like bread and pasta. And, an increasing number of these patients do not have coeliac disease - for a long time the adverse reaction most commonly associated with wheat. So what’s going on? Graihagh Jackson hears about an emerging condition called non-coeliac gluten sensitivity, which could be affecting hundreds of millions of people worldwide, and meets the doctors fighting over how best to treat it. She asks why this condition is spreading so fast – could it be something to do with our modern lives and diets? And are wheat and gluten entirely to blame, or could there be dangers lurking in a whole range of other foods?(Picture: A woman's hand touching wheat in a field. Credit: Getty Images/BBC)

In some corners of the world tipping a waiter or waitress would be considered an insult. In other countries, the exact opposite is true. So why did these dramatically different cultures of gratuity evolve, and how difficult is it to change them? We speak to two restaurant owners on opposite sides of the world struggling to reverse tipping norms – one restaurateur in New York explains why he eventually had to abandon a ban on gratuity, and another in Shanghai describes how difficult it is to convince Chinese customers that they should pay extra.But is there any relationship between tips and service quality anyway? One academic who’s spent his life studying the custom has found it to be almost non-existent. So why do customers continue to tip? Apparently, it’s all down to guilt.(Picture: A waitress refusing a tip. Credit: Getty Images/BBC)

What do Harry Potter and the Philosopher's Stone and Lady and the Tramp have in common? Both use food in subtle ways to immerse us in their stories and help us make sense of fictitious worlds - from jumping chocolate frogs to kissing over spaghetti. The same is true for many novels, where food can be an integral part of building characters, plots, even entire worlds. Graihagh Jackson speaks to three world-acclaimed writers – two authors and one Nollywood script writer and film director - to find out how and why they employ food in their work. How do you create make-believe foods for a science fiction world, yet still imbue them with meanings that real world listeners will understand? When you’re trying to appeal to multiple audiences and cultures, how do you stop your food references getting lost in translation? And can food be used to highlight or send subtle messages about subjects that are traditionally seen as taboo?(Picture: Artistic depiction of a woman lying on top of an orange. Credit: Getty Images/BBC)

Australia's bushfires are thought to have killed more than one billion animals, and although many of the country's wild species have been worst affected thousands of livestock have also died, some of them buried in mass graves.The severe droughts that partly fuelled the flames have been affecting cattle in Australia for several years, destroying many of their grazing lands - a vital source of nutrition. There are also signs that the extreme heat in some parts of the country could even be making these animals infertile. Graihagh Jackson speaks to Gundula Rhoades, a livestock vet from New South Wales, to find out more. We also hear about the impact of climate change from two other farm vets. Edwin Chelule, from Nairobi, Kenya, says droughts there have been making dairy cows less productive, destroying families' livelihoods. And Emily Gascoigne, a sheep expert from the south west of England, tells us some disease patterns have been changing.All three work in an industry that's a big part of the climate change problem – livestock are responsible for almost 15 per cent of greenhouse gas emissions - so can they use their medical expertise and close relationship with farmers to bring change? (Picture: A farmer standing near the bones of a dead cow in a drought-affected paddock in New South Wales, Australia. Credit: Getty/BBC)

New Year's resolutions about food often involve cutting down on something, or giving something up, but how about committing to trying something new for the next 12 months? How much harder is it, and what do we learn about ourselves along the way?Graihagh Jackson meets three women who went to extraordinary lengths in search of change: a working mum who cooked a different meal every day of the year to escape a cooking rut; a writer who made her own salt from seawater and learned how to butcher a sheep as part of a pledge to only eat non-processed foods; and a blogger who logged and photographed everything she ate for 365 days.We hear how difficult, expensive and exhausting the challenges were, but also how they brought each of these women closer to their families and friends, as well as their food.(Picture: A tree through four seasons. Credit: Getty/BBC)