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.
Kate investigates how prawns are intensively farmed and Matt discovers why there are often so few wild mushrooms in our wild mushroom soups
The fourth episode of Food Unwrapped explores the difference between green and black olives, and why not everything that goes into beer processing is listed in the ingredients
The team head to Thailand to find out what seafood goes into seafood sticks, and discover how some British wine is really made... in Spain
Kate Quilton heads to Spain to find out how pure squeezed, not-from-concentrate orange juice is really made, and how fresh it is
Kate travels from Essex to Holland to try and find out how sandwich manufacturers stop our packet tomato sarnies from going soggy
The food enthusiasts discover how much cream is in ice cream, and find out how to smoke cheese, sausages and crisps with liquid smoke
The team ask: is mouldy bread safe to eat? Kate's on the trail of the chicken that goes into a Kiev.
Jimmy Doherty asks: what exactly is in a Doner kebab? Kate Quilton finds out the safest way of eating oysters. And Matt Tebbutt learns about the amazing ingredient in every bottle of 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 chillies 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?
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 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.
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.
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?
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?
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, 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?
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?
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?
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?
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?
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
Kate Quilton uncovers the secrets of saffron in Morocco. What makes it the most expensive spice in the world? And can we be sure that all the saffron on our shop shelves is the real thing?
Matt Tebbutt finds out how dangerous kidney beans can be if they're eaten raw or insufficiently cooked
Jimmy investigates a potentially devastating by-product of Greek yoghurt production
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?
Jimmy finds out how Kenyan farmers get their green beans so straight. Matt learns about scallop procreation. Kate checks out Cornish pasties and explores swede and turnip confusion.
What makes icing sugar so light and fluffy? Can you make risotto with long grain rice? Gennaro Contaldo gives it a go. And the surprising things that are being done with pre-packed sandwiches' crusts.
Matt visits an extraordinary underwater basil farm as he investigates pesto. Jimmy witnesses remarkable cockle gathering methods. And why do toasted marshmallows go crispy and melty at the same time?
Jimmy checks out craft beer; could it really make a good sports recovery drink? Kate joins the world's biggest food fight at a Spanish tomato festival. And why are tinned anchovies salty?
Jimmy investigates why British cheese sales are soaring across Europe. Kate wants to know what colour of limes are the juiciest. And Matt checks out Parma ham.
Skyr: it looks like yoghurt and it's creamy like yoghurt, but it's fat-free. So is it yoghurt? Jimmy visits Iceland to find out. Are dried strawberries in cereal real strawberries? Plus: oysters.
In Italy, Jimmy investigates why Parmesan costs so much. Kate visits Hungary and Spain to find out where paprika comes from. And Matt looks at mass-produced boiled eggs.
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?
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?
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?
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?
Can caffeine help us burn calories? Can diet drinks make you fat? Plus: chocolate that could be good for you; and the secret ingredient in redbush tea that could help us burn fat.
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.
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?
Jimmy, Kate and Matt present some favourite investigations. Jimmy joins the fight to protect bell peppers. Are Brazil nuts radioactive? And can Matt turn the public on to goat meat?
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
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?
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.
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, Kate and Matt present some of their favourite investigations. Can you put dishwasher salt on your chips? How are crisp flavours made? Is coconut oil really healthier than other oils?
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?
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?
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.
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?
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?
Why is maple syrup so expensive? And jelly beans don't contain gelatine, so what is the jelly in a jelly bean?
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?