Matt Tebbutt visits Argentina to learn the secret of perfect popcorn, Andi Oliver looks at how the mould gets put inside blue cheese, and Jimmy Doherty is in Germany to see how electricity is used in cutting edge crisp production.

Amanda Byram learns if there's anything Scottish at all about scotch eggs, and Matt Tebbutt heads for Argentina to find out what the red liquid in a supermarket steak is if not blood. Kate Quilton reports on the dangers of feeding honey to young children.

What's the healthiest lettuce in the salad bag? Is sea salt all it's cracked up to be? And in Suffolk, Briony May Williams explores the difference between light and dark ales.

Helen Lawal heads to one of the world's biggest coffee factories to find out how instant cappuccinos get their froth. Matt Tebbutt is in Naples to discover why most tinned tomatoes come from Italy, while Kate Quilton embarks on a panettone odyssey across Europe to learn how the fluffy cake lasts so long.

Andi takes an eye-watering trip to an onion factory. Plus: how do raspberries get from the field to our fridges without turning to mush? And why is Thai banana blossom shaking up fish and chips?

Jimmy investigates turmeric in India and Kate finds out how much milk is in chocolate, while Andi draws the short straw and investigates asparagus and pungent pee problems.

More fascinating food facts from around the world, including the role of candy floss in an astonishing food revolution in the US. Plus: crayfish trapping, and brie.

Jimmy finds microplastics in some of our most popular soft drinks. Kate Quilton tackles nettles. And Amanda Byram asks why do rhubarb and custard go so well together?

The team lift the lid on al fresco food. Does using marinades or dry rubs make a difference to your meat? Plus: halloumi, fruit salad, edible charcoal and more.

Amanda Byram is plunged into darkness in the rhubarb triangle. How much sugar is in milkshakes? And Matt Tebbutt investigates sunflower seeds.

Jimmy heads to Paris to find out why baguettes go stale so fast. Matt checks out buffalo mozzarella in Italy. And Briony May Williams discovers the surprising secret to how mushy peas get mushed.

A trip to California reveals the secret of perfect walnuts. Plus, what makes sour sweets sour? And how do brewers make their trendy hazy beers cloudy?

How can there be so many tomatoes in a tomato ketchup bottle? When did oysters go from Victorian bar snack to luxury food? And the truth about medium vs large eggs.

Jimmy Doherty asks what offers better value: growing your own fruit and veg or buying from the supermarket? Plus, investigating the illegal trafficking of eels, and ginger beer.

The team investigate how supermarkets get the iced writing so perfect on birthday cakes, the popularity of the soy bean, and the growing trend for hemp-based food products.

Some favourite investigations as Jimmy Doherty looks at how our national dish could become squid and chips, Kate Quilton reports on kangaroo meat, and Matt Tebbutt looks at pesto.

Kate and Helen explore vanilla, while in the Netherlands Matt explores the myth that Edam balls were once used as emergency cannon balls!

Favourite investigations. Kate Quilton visits McVitie's to ask why many biscuits have little holes all over them. Jimmy Doherty finds out how corks are made for wine bottles.

Favourite investigations. Jimmy Doherty visits Europe's biggest brewery. Kate Quilton challenges Matt Tebbutt to make crumpets. And Matt discovers why maple syrup is so expensive.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

From novel turkey cooking methods to affordable fizz, this special show reveals everything you need to know to feed your family and friends better, cheaper and faster

Jimmy Doherty finds out how Sri Lanka is coping with a looming coconut shortage, while Kate Quilton discovers whether compostables could be the answer to worldwide plastic pollution problem, and Matt Tebbutt is in Paris to learn why the macaron has such a hefty price tag.

Kate Quilton learns about a potentially life-saving property of discarded shrimp shells and Matt Tebbutt investigates why people cannot seem to get enough of salted caramel. Plus, Jimmy Doherty explores the price differences between fresh and frozen…

Kate uncovers something surprising about small hens' eggs. Plus: why can't you eat supermarket burgers pink? And where do the bubbles in beer come from?

How do you milk a camel? Kate investigates, and explores camel milk's rising popularity. How does supermarket fresh pasta last so long? And should we buy supermarkets' standard products or value ones?

Can booze keep you warm? How safe is bacon? Jimmy discovers something unexpected in fish fingers. Why is there calcium in bread? And how can New Zealand lamb be sold as 'fresh' here?

Kate explores the surprising secrets of the vegan cheese melt, in this special vegan episode. Plus: should we be raising children as vegan? And can Jimmy go vegan for a week?

Have you ever wondered how the humble spud is turned into the unusual shapes in your favourite bag of crisps? Jimmy Doherty visits Germany to learn the secret behind the twists, twirls and curls of this much-loved snack. Dr Helen Lawal investigates whether carb-restrictive diets really burn fat quicker, and uncovers an astonishing medical use for this popular weight-loss tool. And Matt Tebbutt finds out the surprising reason why smoked fish is dyed yellow.

What's more fattening: sandwiches, wraps or bagels? What sort of lunches make us sleepy? Dr Helen Lawal investigates the rise in teenagers having fried chicken for lunch. Plus: sushi.

Have you ever wondered how the humble spud is turned into the unusual shapes in your favourite bag of crisps? Jimmy Doherty visits Germany to learn the secret behind the twists, twirls and curls of this much-loved snack. Dr Helen Lawal investigates whether carb-restrictive diets really burn fat quicker, and uncovers an astonishing medical use for this popular weight-loss tool. And Matt Tebbutt finds out the surprising reason why smoked fish is dyed yellow.

Jimmy Doherty investigates whether protein supplements help build better bodies and also heads to Japan to learn about wasabi. Matt Tebbutt exposes the potential dangers of consuming grapefruit while on certain medications, and finds out which foods generate the most wind, while Kate Quilton lifts the lid on peanut butter's shelf life, and asks if there is really any difference between dog and cat food.

Can eating too many poppy seeds make you fail a drugs test? Kate learns the consequences of tipping cooking oil down the drain. Plus: ancient grain bread.

Kate investigates the worrying rise in peanut allergies. Matt traces the British blackcurrant from the field to the Ribena factory. Jimmy's on the trail of a surprising food fraud: oregano.

Is a parasite hiding in your sushi? Can M&S really trace all their beef burgers back to the cow? Plus: Matt investigates concerns about naturally-occurring arsenic in baby rice products.

Kate discovers how the way that you drink tea can affect its taste. Matt investigates the difference between bubble gum and chewing gum, and discovers an unusual use for used gum. Plus: lentils.

Why is there jelly in our pork pies and how does it get there? What in nature provides the natural bright blue dye in our sweets? And why is soft shell crab such a delicacy?

Jimmy discovers why caviar is so expensive. Kate reveals how a malty unsung hero is made. Plus: muesli.

Kate checks out a space-age high-speed German pickling machine. How do you make a kipper, and why don't we eat them for breakfast any more? And rice cakes are made from brown rice. Why are they white?

What gives fizzy sweets their fizz, and can you harness their explosive power in a rocket? One in five of us lack vitamin D; can mushrooms help? And is raw kale bad for you?

Are baked beans baked? If stinky cheese smells so bad why does it taste so good? And Matt gets the skinny on diet champagne.

Kate Quilton looks into Britain's plastic crisis while Jimmy Doherty and Matt Tebbutt visit South Africa on a piquanté pepper hunt.

Could a threat to British juniper berries spell the end of the gin resurgence? Plus: Kate checks out macadamia nuts in Hawaii and Matt finds out what's so bad about his double dipping habit.

In China, Matt Tebbutt helps to cultivate pearls from surprising creatures. And why does sliced ham sometimes have a weird rainbow pattern on it?

Kate meets a tech start-up who hope to feed the world by growing fish flesh in a dish. Plus: how do you make ice cubes that aren't cloudy? And why can't you put papaya in jelly?

How come some bread breaks up when it's buttered but other bread doesn't? And since the sugar tax came in, manufacturers have been adding less sugar to some products. But what are they adding instead?

Can coffee help you sober up? Kate investigates trendy drink kombucha and meets people who are turning it into clothes! And which cut of beef do thin-cut steaks come from?

How do those chunks in American ice cream stay crispy? Why have olive oil prices been going up? Why are Bloody Marys so popular on planes and why does airline food taste so different at ground level?

How do crumpets get filled with holes? How come baby food has such a long shelf-life? And why's mascarpone more expensive that other soft cheeses?

Jimmy finds out how shredded wheat's made. Matt discovers that lard can be healthier than butter. Dr Helen visits Poland to learn the trick to concentrating apple juice.

Jimmy hunts for the mother of all lagers. Plus: can changing the shape of food help our children eat their vegetables? And why are blueberries coated in a strange cloudy wax?

Why are some vanilla ice creams more expensive than others? Are baby carrots really babies? And how can coffees have lots of flavours when they use just two types of coffee beans?

Was Edam once used as cannonballs? What's that white powdery stuff that sometimes forms on chocolate? And can bedtime teas really help us sleep?

Jimmy examines how plastic packaging is polluting the food chain with potentially global implications. Is it really possible to predict if you'll love or hate Marmite? Matt runs across a custard pond.

How much orange is in orange squash? Why's maple syrup so expensive? And what's with all those little holes on biscuits?

Jimmy learns about the battle against the hidden nuisance that leads to corked wine. Plus: the surprising difference between runny and set honey. And okra.

What gives some whisky its smoky flavour? Why doesn't halloumi melt? And how do you get corn off the cob?

Why's clotted cream yellow? Could squid and chips replace fish and chips as our national dish? And where do multivitamins come from?

Bergamot provides flavour in Jimmy's Earl Grey tea, but what exactly is it? How does instant tea match up against tea bags? Kate visits a very colourful jelly bean factory. Plus: pork scratchings.

How much prawn's in a prawn cracker? What's in low-salt food instead of salt? Plus: the new high-tech method for keeping fresh herbs alive for longer. And a basil plant that's half tree.

Kate meets a scientist who hopes his genetically engineered goats' milk could save 500,000 lives a year. Is the fish we're buying really what we think it is? And what exactly is spreadable butter?

In this Food Unwrapped diet special, Jimmy Doherty, Kate Quilton, Matt Tebbutt and guest presenter Kiran Jethwa cross the globe to unearth the very latest dietary trends and scientific advances in the world of weight loss. In Los Angeles, home of the body beautiful, Kate investigates reports that caffeine could be a powerful secret weapon in the battle of the bulge. Could a double espresso really help us burn extra calories, even after we finish exercising? Kate meets one of California's leading sports scientists to find out. Jimmy visits Belgium on the trail of the dieter's holy grail: a chocolate that could be good for you. The secret? It's a probiotic chocolate bar, packed with bacteria that are supposed to keep us healthy and even help us stay slim. But how does probiotic chocolate stack up against other gut-friendly foods such as sauerkraut or yoghurt?

Can high-tech surveillance save our salmon? How on earth can you barbecue a kangaroo? Plus: the secrets behind the annual race to get seasonal asparagus into supermarkets.

How do you farm crocodiles? Kate visits Australia to find out and collects crocodile eggs from under their mothers' noses. Does cod liver oil have to be cod? Why do bagels taste different from bread?

Kate finds out why rosemary is in so many food products. Jimmy meets a man whose taste buds are insured for a million pounds, in of one of the UK's biggest tea producers. Plus: seaweed.

Should we keep coffee, tomatoes, potatoes and even red wine in the fridge? Kate finds out why eucalyptus is so good at clearing our airwaves. Plus: sauerkraut.

Kate visits Rome to find out what the difference is between gelato and ice cream. Plus: are dark rum and white rum made with different ingredients? And why do mints make your mouth cold?

What are those worms doing in bottles of tequila? How do you stop carp tasting of mud? And what's the difference between tangerines, mandarins, satsumas and clementines?

At a green bean plantation in Kenya, Jimmy learns how they grow the beans so straight for the supermarkets, and finds out what happens to the beans that don't make the grade. He also discovers the remarkable lengths that the farmers go to to stop the local wildlife destroying their valuable crop. At a Norwegian scallop farm, Matt braves the icy waters of the North Sea to join the divers harvesting scallops by hand from the sea bed. This sustainable farming method could be a model for the rest of Europe, but it needs a constant source of baby scallops, so Matt gets hands-on in the hatchery as he learns how to encourage a scallop to procreate. And Kate tries to unravel a mystery about Cornwall's most famous local delicacy: what exactly goes into a Cornish Pasty, swede or turnip?

Kate visits Israel to unearth the mystery ingredient that makes icing sugar so light, fluffy and powdery. Her journey takes her via a dip in the Dead Sea to an enormous phosphate mine in the desert, where all is revealed. In Italy, Jimmy investigates the difference between risotto rice and long grain rice. An early morning trip to a bustling rice auction and a visit to a flooded rice field shed some light. Back in the UK, Jimmy challenges renowned Italian chef Gennaro Contaldo to knock up a risotto using long grain rice; can it be done? And where do pre-packed sandwiches' crusts go? Matt discovers that one sandwich maker has come up with an innovative - and surprising - way of putting the waste bread to good use

Jimmy Doherty, Kate Quilton and Matt Tebbutt reveal more unusual, intriguing and surprising secrets behind the food we eat. Matt heads to Italy to find out how supermarkets can sell pesto at an affordable price when the traditional ingredients are expensive. He visits one of Europe's biggest pesto producers and takes a remarkable trip to the bottom of the Mediterranean Sea, where basil is being grown in an extraordinary underwater farm. Jimmy wants to know why so many cockles in our supermarkets come from abroad, when he always thought of them as a quintessentially British staple. He visits Wales and the Wash, where two very different stories unfold, and witnesses a remarkable method of cockle gathering that has to be seen to be believed. And why do marshmallows go so crispy and melty at the same time over the campfire? Kate takes a colourful trip around Europe's largest marshmallow factory to find out.

Jimmy Doherty investigates craft beer, meeting a couple who gave up jobs in the NHS to pursue their dream lifestyle of brewing and selling ale. Kate Quilton goes in search of the perfect tomato and finds herself in the middle of the world's biggest food fight at a festival in Valencia, while Matt Tebbutt examines why tinned anchovies taste salty when fresh ones don't, visiting a processing plant to find out.

Jimmy Doherty visits the largest wholesale food market in the world in Paris and discovers why British cheese sales are soaring across Europe. Matt Tebbutt travels to one of the largest ham producers in Italy and meets a pig farmer who tells him about a delicate problem that all pork producers face, while Kate Quilton investigates why some limes are so much juicier than others.

Jimmy Doherty looks into skyr, a mysterious yoghurt-like product that claims to be entirely fat-free, but has a surprisingly creamy texture, while Kate Quilton heads to one of the busiest oyster hatcheries in France, where she witnesses the amazing science that goes into providing oysters year-round. Plus, Matt Tebbutt wants to know if the dried strawberries in his cereal are real or just a clever imitation.

In Italy, Jimmy looks into why Parmesan costs up to twice as much as supermarket Cheddar. Kate's been puzzling over paprika and travels to Hungary and Spain to find out exactly where it comes from. And Matt looks at hard-boiled eggs - it can be fiddly enough getting the shell off in the comfort of your own kitchen, so how do the big players manage it now that hard-boiled eggs are popping up everywhere in supermarkets?

Jimmy's off to Israel on the trail of an elusive fruit - the fresh date. If raisins are dried grapes and prunes are dried plums, then what exactly are dates? Jimmy's search for the answer takes him to a vast water purification plant, where they harness the raw sewage of Tel Aviv to turn barren desert into fertile farmland. Kate flies to California to investigate why almond butter is more expensive than other nutty spreads, and discovers a combination of extreme weather and global economics have made the price of almonds go completely nuts. And Matt's in Scotland, investigating haggis. He makes a surprising discovery about the dish's true origins - and then faces the nerve-shredding ordeal of delivering some highly unwelcome news to an unsuspecting audience.

Jimmy takes to the skies above Israel to join the battle to protect the bell pepper crop from the Mediterranean fruit fly, but is amazed to learn that it's not insecticide that he's helping to spread across the desert. Can you put dishwasher salt on your chips? Jimmy visits an extraordinary underground salt mine in Sicily, with a vast network of tunnels leading to a subterranean salt processing plant. Kate visits Vietnam to find out if coconut oil is any healthier than other oils. She also heads to the Amazon rainforest to investigate rumours that the Brazil nuts on UK supermarket shelves are all radioactive.

The team examine recent trends and scientific advances in weight loss. Can eating more fat make us thin? Should we skip breakfast? And drink full-fat milk? Or just get a good night's sleep?

What exactly is processed meat, and is a fresh British banger healthier than a frankfurter? Jimmy investigates dates. And Matt meets a man who has 250 varieties of apple on his tree.

Are crisp flavours made of real cheese and onion or cooked up in a lab? Matt investigates. Meanwhile, Kate learns the secrets of pepper, and Jimmy finds out about different types of yeast.

Why does marmalade taste bitter when it's made of sugar and oranges? Which fish are fully sustainable? And are the British public up for goat meat?

Jimmy joins the battle between the bell pepper and the Mediterranean fruit fly. Matt visits an amazing mobile leek factory. And how can you tell how much manuka is in your manuka honey?

Is coconut oil really healthier than other oils? Can absinthe lead to hallucinations and madness? And what do artichoke hearts have in common with strange African berries?

Matt makes a surprising discovery about haggis. Jimmy wants to know if you can put dishwasher salt on your chips. And why do chicks have their beaks trimmed?

Are ready meals really twice as big as they were in the 1950s? How do green soy beans become creamy white tofu? And can artificially inseminating cows make milk easier to digest?

Could bananas be used to fight viruses including HIV and influenza? Have Dutch scientists created a meat substitute that tastes of meat? And what are those green bits on crisps?

Why is almond butter more expensive than other nutty spreads? How is wine turned into fortified wine? And why does chopping onions make you cry?

Are alarming headlines about MSG justified? Jimmy visits a huge factory to find out. Kate investigates rumours that the Brazil nuts in UK supermarkets are all radioactive. Plus: elderflower cordial.

Jimmy investigates the effects of vitamin D deficiency. Kate wants to know how supermarkets can sell wagyu beef, cheaply. And Matt heads to Switzerland to ask why there are holes in Swiss cheese.

Jimmy heads to Spain to meet an entrepreneur farming blue fin tuna. Kate investigates why ice cream can go gritty, and Matt explores the difference between premium and budget peas.

Jimmy investigates whether it's worth splashing out on expensive vodka, Kate finds out how coffee beans are turned into instant granules, and Matt checks out Wensleydale cheese.

Why do we have to pay for pistachios that we can't crack open and eat? Are traditional rolled oats better for us than quick-cook porridge? Plus: the trouble with draught Prosecco.

Jimmy examines how far farmers go to produce perfect veg for supermarkets. In America, Kate discovers that wine's getting stronger. Matt finds out which biscuit's best for dunking.

Kate discovers how scientists are using pineapple enzymes to help burns victims. How do the bubbles get into chocolate bars? And should we never eat mussels when there's an 'r' in the month?

Do prunes really keep us regular? How much sugar is in cherry tomatoes, and are supermarkets labelling them correctly? And can a Dutch pioneer grow veg using sea water?

Jimmy explores new ways to get crabs to come out of their shell. Kate finds out how to get children to eat their greens. And how are gummy sweets made? Matt investigates.

The team look back at some favourite investigations. Why is that liquid in packets of mozzarella? Why do we import venison when there are so many British deer? Why shouldn't we eat raw bean sprouts?

Is there any goodness left in tinned tomatoes? What part of a pig makes sweets chewy? And how do prebiotics work?

Are there wasps in fresh figs? Why is ostrich meat red? And Kate's mission to give up added sugar reveals some shocking truths.

Why is halloumi cheese a subject of great debate? Is there a lethal poison lurking in apple cores? And what lives inside every sourdough loaf?

Jimmy visits Bulgaria to find out why rose oil is considered liquid gold. Kate tackles pink pork; is it safe to eat? Matt gets the inside story on oven bags.

Jimmy examines the impact 'healthy' snacks can have on children's teeth. Kate finds out what makes cheap wine taste good, and Matt asks why good garlic gives us bad breath.

Jimmy finds out why pine nuts are so expensive. Kate travels to the Amazon rainforest to discover what gives Red Leicester cheese its colour. And Matt reveals how glacé cherries are made.

Jimmy learns about a potentially devastating Greek yoghurt by-product. Kate uncovers the secrets of saffron, and Matt finds out why you can't eat kidney beans raw.

What do Italians think of the extra-virgin olive oil sold in our supermarkets? Does drinking hot milk help you sleep? How wild is wild boar? And how much truffle is in truffle oil?

Jimmy finds out what whitebait actually is and why it's not available in most supermarkets. Kate visits a cattle farm in America that supersizes cows and asks if what our meat eats matters.

Jimmy investigates how good omega3 supplements are. Kate asks why Iberico ham is so expensive. Matt finds out what makes chocolate white.

Jimmy investigates mineral water and whether tap water has really been through seven people, while Kate finds out what the vegetable is in vegetable oil.

Jimmy wants to know why so much of the bacon in supermarkets comes from Denmark. Kate meets mozzarella makers in Italy. What is the liquid that mozzarella balls are bobbing in?

Kate wants to know where liquorice comes from. She's not a fan, but will she be converted once she's seen the experts in Calabria, Italy turn bitter-tasting liquorice roots into sweet treats?

Jimmy Doherty explores how blood is becoming trendy in gastronomy, including blood meringues. Kate Quilton asks why Spanish melons are so juicy, and Matt Edwards finds out how rock is made.

Jimmy finds out how food producers are using seaweed to reduce their salt content. Jellied eel sales are booming, but where do the eels come from? And why does tonic water glow in UV light?

Matt wants to know how it's possible for British onions to be sold in supermarkets year-round. The answer lies not in our soil, but in an aircraft hangar. Plus: is pricey aged steak worth the wait?

Jimmy wants to know what gives stout its smooth texture. Kate's on the trail of the ultimate superfood. And why is English mustard hot while the Dijon variety is relatively cool?

Jimmy discovers that there's more to traditionally-matured cheese than meets the eye, thanks to a microorganism that helps give the likes of pecorino their distinctive hard rinds

Jimmy Doherty finds out why Iceland supplies most of our cod. Kate Quilton investigates whether the banana's days are numbered. And Matt Tebbutt discovers why popcorn doesn't fill you up.

Kate visits France to find out if a glass of red wine a day keeps the doctor away. Matt lifts the lid on skimmed milk. How do dairy farmers get exactly the right amount of fat in every pint of milk?

Jimmy investigates whether manuka honey has any medicinal properties. Kate discovers why some varieties of caviar are so much cheaper than others. And Matt visits a Scottish distillery.

Jimmy gives supermarket fish a sniff to discover how fresh the stock really is. Kate investigates how asparagus can be grown all year round in one of the driest places on earth - the Ica Valley, Peru.

The team ask: is mouldy bread safe to eat? Kate's on the trail of the chicken that goes into a Kiev. And Matt is puzzled: how can supermarkets sell English summer apples in the middle of winter?

Jimmy Doherty asks: what exactly is in a doner kebab? Meanwhile, Kate Quilton wants to find out the safest way of eating oysters. And finally, Matt Tebbutt learns about the amazing ingredient that comes in every bottle of that classic English tipple gin.

The team ask: Why are cashew nuts never on the supermarket shelf in their shells? What exactly is scampi? Does expensive salt taste different to cheap salt?

Jimmy, Kate and Matt ask how much cow is in a beef stock cube, how cornflakes are made, and what exactly processed cheese is.

How is caffeine removed from coffee? What puts the chew into chewing gum? How are the calories counted in diet bread?

Can hot chilies injure you? What's the difference between outdoor-bred and outdoor-reared pork? And what's bugging Jimmy about red food dye?

Does a happy chicken lay a tastier egg? How do the supermarkets get avocados 'ripe and ready'? And why does one type of balsamic vinegar cost 100 times more than another?

Are fresh sardines better for us than tinned sardines? How much is known about the ducks we consume? And, when it comes to pasta, is fresh best?

Kate Quilton travels to Swaziland to find out how they get tinned grapefruit so perfect, and, in Finland, Matt Tebbutt discovers exactly what the bacteria are in Probiotics.

Kate and Matt investigate the wax on our lemons in Spain and Thailand, and Matt gets the real story behind formed ham here in the UK.

This episode explores how prawns are intensively farmed and discovers why there are often so few wild mushrooms in our wild mushroom soups. Kate flies to Thailand - the world's biggest producer of farmed prawns - to get a sense of the scale of the industry, and Matt meets a professional wild mushroom forager in the woods of West Sussex.

This episode explores the difference between green and black olives, and why not everything that goes into beer processing is listed in the ingredients. Matt travels to South Africa to visit one of the country's largest olive orchards in the Western Cape, where he discovers that black olives are just riper green olives, but that both need a year's soaking in brine to make them edible. In Spain, Kate is shown how mass production factories make super black olives found in pizza and salads. And Matt heads to a small brewery near Belfast to discover if it really is just water, hops, barley and wheat in beer.

The team head to Thailand to find out what seafood goes into seafood sticks, and then discover how some British wine is really made... in Spain. In a seafood stick factory in Thailand Kate sees some incredible production techniques and giant frozen blocks of fish called surimi. Confusingly, there are two types of domestically produced wines: British and English. British wine is much cheaper, so what's the difference?

Kate Quilton heads to Spain to find out how pure squeezed, not-from-concentrate orange juice is really made, and how 'fresh' it is. The team then travel around the UK to find out what is used to replace the fat in low-fat mayonnaise, and discover it's a bacteria that usually grows on rotting cabbages.

Kate Quilton travels to Holland to find out how manufacturers prevent tomatoes in packaged sandwiches from going soggy, and the team investigates the production of strawberry-flavoured food. Matt Tebbutt and Rachel Edwards-Stuart try to make yoghurt with the average amount of the fruit used in supermarket-own brands - 10 per cent - but the results are disappointing, while Martin Dickie visits the Nestle Rowntree factory to learn about the concentrated strawberry flavour used in their pastilles.

Matt Tebbutt travels to Sweden to learn how a food company uses liquid smoke to flavour sausages, a method that is cheaper and quicker and enables flavours to be tailored more effectively. The Food Standards Agency requires that ice-cream needs to contain milk protein and any kind of fat - vegetable being the one most commonly used. Martin Dickie and James Watt head to Brighton beach with an old-fashioned bicycle adorned with banners saying `Ice Vegetable Oil'. What will the public make of this product?

In this special episode Jimmy Doherty, Matt Tebbutt and Kate Quilton test some of the food techniques they've discovered during the series, to answer viewers' questions

Jimmy Doherty, Matt Tebbutt and Kate Quilton answer more viewers' questions. Jimmy heads to Brazil to put stock cubes in the spotlight. How can something so small taste so beefy?

Jimmy Doherty, Kate Quilton and Matt Tebbut uncover the secrets behind our festive food. Do the bubbles in Champagne really make it go to your head faster? And why do children hate sprouts?

A huge range of diet products and plans are available, from fasting to detoxing and cutting out certain foods. Jimmy, Kate and Matt want to know which ones actually work.

Jimmy Doherty, Matt Tebbutt and Kate Quilton take another look at some of their favourite food discoveries from Series 3 in this special episode.

Is dark chocolate good for you? Could daffodils help treat Alzheimer's disease? Jimmy, Kate and Matt uncover remarkable secrets about the nation's favourite springtime produce.

Why is farmed salmon pink? Can you grow a chicken as big as a turkey? Is the gold in drinks real gold? Can you eat frankincense? How do they make wafer-thin after-dinner mints?

Jimmy Doherty and the team uncover the truth about diet foods. Could green tea help knock off some pounds? Is soup the secret to losing weight? And can beetroot improve your physical performance?

Jimmy, Kate and Matt revisit missions from their casebook. Why is so much supermarket bacon Danish? Jimmy comes face to face with cheese mites. And are the banana's days numbered?

Jimmy, Kate and Matt revisit some of their most surprising food investigations. How fresh is supermarket fish? Is cheese always off-limits if you want to lose weight? And what's in olives?

Jimmy, Kate and Matt reveal how food can help you get into great shape for summer. Do greens give you a golden glow? Are konjac noodles a dieter's dream? How can you get buff for the beach?

The team present some favourite investigations. Does what our meat eats make a difference? Why are pine nuts so expensive? And why don't shop-bought pies spill their gravy?

Jimmy, Kate and Matt check out budget smoked salmon and Irish cream liqueur, and ask why goose is pricier than turkey and what an almond shortage means for Christmas cake

Can you still have treats when you're on a diet? This episode includes raw chocolate, and the possible holy grail of sugar-free baking. Can alcohol-free beer taste of beer? Plus: chilli, and cheese.

Jimmy, Kate and Matt present some of their favourite investigations, including Greek yoghurt's potentially devastating by-product, as well as red Leicester cheese and ostrich meat

The team present some of their favourite investigations. What gives sourdough bread its twang? Why is rose oil considered liquid gold in Bulgaria? And Kate explores the power of beetroot.

The team present favourite investigations. What exactly is whitebait? Kate reveals the secrets of saffron fraud. The glacé cherry production process takes Matt's breath away, but not in a good way!

The team present some favourite investigations. Kate finds out how cheap red wine is made, Jimmy investigates gluten, and Matt wants to know which part of the pig makes chewy sweets chewy.

Jimmy, Kate and Matt present some more of their favourite investigations. Is there a wasp in your fig? How do energy drinks give you a boost? Why can't you eat kidney beans raw?

Super-slimmers share the secrets of their dieting success, while Jimmy, Kate and Matt check out miso soup, the apple cider vinegar diet, gut bacteria and more

This special episode revisits a basketful of not-to-be-missed missions from the Food Unwrapped casebook. Jimmy asks why so much bacon in supermarkets is Danish and visits one of the largest pork abattoirs in Europe. And he comes face to face with traditionally-matured cheeses’ residents, cheese mites. Kate investigates why most British supermarkets only stock one variety of banana, and heads to Malaysia to learn about a disease that could mean the end to one of our favourite fruits. She also tracks down the slippery fellows used in the increasingly popular jellied eels. Meanwhile, Matt visits a Scottish distillery to find out the surprising truth about what gives whisky its distinctive flavour and goes on a real life egg hunt to find out more about double yolks. But with 1.5 million hens eggs laid every day at just one UK farm, he may need to use some special techniques to find the rare ‘double-yolkers’.

New presenter Kiran Jethwa joins the team as they investigate all things sweet. Is agave syrup healthier than sugar? Matt meets Cleo Rocos to find out. Is brown sugar better for us than white?

Kate wants to know why almond prices have gone nuts. Jimmy investigates dates. And Matt makes a surprising discovery about the origins of haggis.

Are Brazil nuts radioactive? Is coconut oil healthier than other oils? Are crisp flavours real, or artificially created in a lab? Can Matt turn the public on to goat meat? Plus: bell peppers and salt.

How can you keep your turkey breast juicy? What makes pink champagne pink? How can supermarkets sell lobster for a fiver? Why are Jimmy's chestnuts exploding? Plus: the ultimate gingerbread house.

The team examine recent trends and scientific advances in weight loss. Can eating more fat make us thin? Should we skip breakfast? And drink full-fat milk? Or just get a good night's sleep?

Jimmy, Kate and Matt present some of their favourite investigations. Do prunes help you stay regular? Why are there holes in Swiss cheese? Plus: black pepper.

Jimmy, Kate and Matt present favourite investigations, including a ground-breaking use for an enzyme found in pineapples. Plus vitamin D, and elderflower cordial.

Jimmy, Kate and Matt present favourite investigations. Is MSG as unhealthy as some headlines claim? Why do onions make you cry? Why are there closed pistachio nuts in our packs?

Kate visits a remote potato paradise in Chile as she investigates coloured crisps. Jimmy learns about avocado-rustling and discovers the secrets of guacamole. And what gives sour beer its tang?

This special episode examines the innovations that are making meat healthier for us and better for the planet, from muscle-bound cattle to sustainable alternatives to beef

The team investigate why some supermarket food prices have soared in 2017, and reveal how technology can help save money, from dynamic pricing to robot fruit pickers and cutting-edge packaging

Should we be stuffing the turkey with chocolate, nuts and mushrooms? Is there silver in cake decorations? Plus: tofurkey, cinnamon and other Christmas food surprises.

Jimmy, Kate, Matt and Dr Helen share surprising food and drink health tips. Can curry help you lose weight? Plus: the Hadza tribe's unique diet, meal replacement drinks, microgreens and more.

The team reveal the secrets of China's food, exploring ancient farming techniques, modern commercial production on an epic scale, and everything from noodles to fortune cookies, soy sauce and garlic

Can you eat any old seaweed? Why aren't pork scratchings made from British pigs? Can you make risotto from long grain rice? What exactly is skyr? Plus: tomatoes, and icing sugar.

Matt visits an extraordinary underwater basil farm as he investigates pesto. And could squid and chips replace fish and chips as our national dish?

The team reveal foodie tips to help you feel great on your summer holiday. Jimmy learns the truth about crash diets. Can collagen drinks boost your skin's appearance? Plus: tiger nut milk.

Kate, Jimmy and Matt revisit some of their favourite investigations. What's the difference between white and dark rum? What's the jelly in a jelly bean? And why do anchovies taste salty?

Is there anything in yuletide spices that gives you Christmas cheer? Should we score our sprouts? Kate checks out a decadent dish from Christmas past: the multi-bird roast. Plus: mince pies.

Kate checks out veg and fruit-based alternatives to carbs and meat. Can a booze-free month make Matt look younger? And which foods and drinks are particularly helpful during endurance training?

Matt joins KFC on the frontline of the fight against flaccid fries, Kate goes behind the scenes at Deliveroo, and Jimmy investigates the health benefits of a taco

Food Unwrapped investigates what will happen to the food on our shelves, in our fridges and on our plates, and how our supermarkets will look and behave, after we leave the EU

Can booze keep you warm? How safe is bacon? Jimmy discovers something unexpected in fish fingers. Why is there calcium in bread? And how can New Zealand lamb be sold as 'fresh' here?

Kate explores the surprising secrets of the vegan cheese melt, in this special vegan episode. Plus: should we be raising children as vegan? And can Jimmy go vegan for a week?

Jimmy Doherty uncovers the secret behind how potatoes are turned into unusually shaped crisps. Plus: can carb-restrictive diets burn fat quicker? And smoked fish: why is it all yellow?

What's more fattening: sandwiches, wraps or bagels? What sort of lunches make us sleepy? Dr Helen Lawal investigates the rise in teenagers having fried chicken for lunch. Plus: sushi.

Some favourite Food Unwrapped investigations. In Kenya, Jimmy looks into the flavours and pricing of tea, Matt visits a Norwegian scallop farm, and Kate checks out limes in Israel.

Jimmy Doherty investigates whether protein supplements really build a buff body; Matt finds out which foods generate the most wind; and Kate Quilton lifts the lid on peanut butter

Matt discovers what gives clotted cream its yellow colour, Jimmy learns where the flavour comes from in his Earl Grey tea, and Kate finds out if we can now eat oysters all year round

Favourite investigations. Jimmy Doherty asks how much orange is in orange squash. Matt Tebbutt runs across a pond of custard. And is it true that your DNA determines whether you love or hate Marmite?

Favourite investigations. Jimmy Doherty finds out what gives piquanté peppers their sweetness. And Kate Quilton investigates potentially dangerous levels of mercury in tuna fish.

Favourite investigations. Matt Tebbutt visits China, the world's biggest oyster producer. Jimmy Doherty looks at dry gin. Kate Quilton asks if herbal bedtime teas can help you nod off.

From novel turkey cooking methods to affordable fizz, this special show reveals everything you need to know to feed your family and friends better, cheaper and faster

A handy haul of health hacks to propel you into 2020, including a look at ginger, spinach and your 'five-a-day' fruit and veg

Favourite brekkie-based investigations. Jimmy traces the roots of baked beans. Helen investigates the health risks of a bacon butty. And why do we prefer tea in a mug to a disposable cup?

A celebration of all things sweet and wonderful, from Parisian macarons and salted caramel, to the secrets of fizzy sweets and the reason some honey is runny and some isn't

As an Easter treat, some favourite chocolate-based investigations, from after-dinner mints to bubbly chocolate, white chocolate, and what makes dark chocolate good for your health

To celebrate the wonderful world of baking, a look inside the world's biggest bread factory. Plus the secret ingredient in the Israeli desert that keeps icing sugar so light and powdery.

A celebration of the world of takeaways and fast food, from the pizzas at Papa John's, to the health risks of rare burgers, the fries at KFC, and the secret of instant noodles

A celebratory look back at some favourite snack-centred stories, from funny-shaped crisps to pork scratchings, rice cakes and nuts, and the perils of double-dipping tortilla chips

A celebration of the foods we turn to when we crave comfort, from pizza to pork pies, and from custard to Cornish pasties. Plus, the inside scoop on fish fingers and ice cream.

A celebration of the mighty store cupboard, from peanut butter's amazing shelf life, to the mysteries of Marmite, and some extraordinary anchovy fishing off the coast of Italy

Some favourite superfood stories sorting fact from fiction - from prunes, microgreens and horchata, to caffeine and weight loss. Plus, could too much kale be a bad thing?

Jimmy Doherty hosts a festive party on the farm as the team share the lowdown on turkey, prawn cocktail, Christmas cake that goes the distance, and how to get cranberries inside cheese

As January's diets, workouts and superfoods kick in, the team offer top hacks for smashing health and weight management goals in 2021 - without ditching the tasty treats, from cheese to cake

Some favourite choc-based investigations. Kate examines dark chocolate's possible health benefits. What makes white chocolate white? And how do they make the gooey bit in After Eights gooey?

What makes British grub special? The team look at Pimm's, apples and porridge, the best vinegar for fish and chips, and the growing influence of spicy jerk seasoning.

With Brits spending a whopping billion quid a month on takeouts, Food Unwrapped delivers some fascinating takeaway facts on spring rolls, kebabs and ghee - the flavoursome heart of curry.

The team take a good look at 'superfoods'. Do pomegranates help with Alzheimer's? Can rosemary increase focus for teens at exam time? Will kefir improve mood? And what about histamines in food?

The gang unwrap festive facts. What's the secret to perfect stollen? Why red cabbage at Christmas? How long does an open bottle of port stay drinkable? Plus: a pigs in blankets alternative.

The team dig deep into food hacks and science secrets for health and well-being as we kick off for 2022 - from chia seeds and gluten-free to the superpowers of watermelon

A look back at some favourite vegetarian investigations, from tasty meat-free burgers to edible seaweed, jackfruit, grow-your-own gardening tips, and the surprising truth about baby carrots