Do more expensive dishwasher tablets clean better? And how do eco versions stack up?

We are back with a new series of Sliced Bread and even more investigations into your suggested wonder products! We'll also be hitting a significant milestone during this batch of programmes so look out for more on that.

First up - dishwasher tablets. Listener Deborah got in touch after hearing our deep-dive into dishwashers themselves and had some burning questions about the tablets we put in them. Do more expensive ones give you a better clean? Do they protect glasses better? And what about the eco brands that promise to be kinder to the environment?

Listener Graham sent a voicenote asking whether buying an 'all-in-one' tablet is better than using separate components, either for cleaning or the environment.

Greg's joined by Deborah and a panel of experts in our studio at Media City in Salford to run all these questions through the wash.

All our investigations start with YOUR suggestions. If you've seen an ad, trend or wonder product promising to make you happier, healthier or greener, email us at sliced.bread@bbc.co.uk OR send a voicenote to our WhatsApp number 07543 306807.

PRESENTER: GREG FOOT PRODUCER: SIMON HOBAN

Could fridges make way for kitchen cabinets that don't just keep food fresh but actually grow it?

Dough is a new series from BBC Radio 4 which looks at the business behind profitable, everyday products, assessing where the smart money is going now and what that could mean for all of us in the years ahead.

In this episode, the entrepreneur Sam White speaks with experts from the world of refrigeration including:

Federica Torelli – Head of Product Management with Smeg which makes fridge freezers.

Emir Lasic - Principal Analyst with the industry analysts, Omdia.

Jason Hirst - CEO and founder of EvoGro which makes plant growing cabinets.

Also joining them is the technology expert and applied futurist, Tom Cheesewright, who offers his insight and predictions on what might be coming beyond the current production pipeline.

Together, they explore fridge freezer trends and inventions chatting about their own choices for game changing, and pointless, innovations.

We hear how energy efficiency labels are not always as accurate as you might think and assess the chances of indoor incubators providing a new home for vegetables and leafy greens away from the fridge.

Produced by Viant Siddique & Jon Douglas. Dough is a BBC Audio North production for BBC Radio 4 and BBC Sounds.

Sliced Bread returns for a new batch of investigations in August when Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread.

In the meantime, Dough is available in the Sliced Bread feed on BBC Sounds

This episode has been edited since broadcast. Twelve year old Bradley got in touch with Sliced Bread after trying out his mum Jennifer’s acupressure mat. Jennifer says she swears by it, it relaxes her, and she even falls asleep on it! But after testing it out himself, he was less than convinced.

He asked us to find out what these mats are meant to do, whether they work or if they’re a placebo effect, and whether paying more for one could mean better results? Joining Greg in the studio to discuss them, is Clinical Acupuncturist Phil Trubshaw from the Manchester Movement Unit based at Manchester Metropolitan University, as well as the Director of Research at the Northern College of Acupuncture, Dr. Karen Charlesworth.

Have you seen a product that claims to make you happier, healthier or greener? Want to know if it is SB or BS? Then please do send it over on email to sliced.bread@bbc.co.uk or drop us a message or voicenote on Whatsapp to 07543 306807.

PRESENTER: Greg Foot

PRODUCER: Kate Holdsworth

One of your most requested ‘wonder-products’ so far. Heat pumps are promising to not only make our houses greener but to also cut our energy bills. But will they? The Government says every home could have one and have reintroduced grants to help buy them. However Nick wants to know if an air source heat pump would be suitable for the 1930s house he’s about to move into with his family. Given the higher cost of the unit and the extra insulation he needs, will he actually be better off with a new combi boiler instead? Greg speaks to experts, does a survey on his own home and gets Nick answers so he can decide if a heat pump, for him, would be the best thing since sliced bread. Do you have a suggestion of a ‘wonder-product’ making a bold claim that Greg can investigate next?

Send us your suggestions to sliced.bread@bbc.co.uk or send it to Greg direct on twitter or instagram where he’s @gregfoot

PRESENTER: GREG FOOT PRODUCER: SIMON HOBAN

For many beef connoisseurs, a wagyu steak is the tenderest meat money can buy. They say it literally melts in the mouth. But Pete wants to know, if a Wagyu steak can set you back £100, how can supermarkets sell Wagyu burgers for around £3.50 a pair? How much of what makes wagyu beef so prized trickles down into a burger?

Greg speaks to meat scientist, Martin Anderson, visits a Wagyu farm in Yorkshire, and sets up a blind taste test. All to find out if Wagyu burgers are the best thing between sliced bread.

Do you have a suggestion of a ‘wonder-product’ making a bold claim that Greg can investigate next?

Send us your suggestions to sliced.bread@bbc.co.uk or send it to Greg direct on Twitter or Instagram where he’s @gregfoot PRESENTER: GREG FOOT PRODUCERS: JULIAN PASZKIEWICZ & KEVIN CORE

“Make better. Buy better. Wear it longer.” Lots of fashion brands are including claims like this in their adverts and one item of clothing that’s really getting the stamp of supposed “sustainability” is jeans.

Maddie has asked Greg to look into what “sustainability” actually means when it comes to denim. Is it a term that marks genuine eco-impact, or is it more marketing BS? And, as adverts claim, do “sustainable” jeans last longer?

Greg speaks to an organisation that rates clothing brands’ sustainability credentials and visits Manchester Metropolitan University to hear the results of their ‘rub test’. Do you have a suggestion of a ‘wonder-product’ making a bold claim that Greg can investigate next?

Send us your suggestions to sliced.bread@bbc.co.uk or send it to Greg direct on Twitter and Instagram where he’s @gregfoot

PRESENTER: GREG FOOT PRODUCER: JULIAN PASZKIEWICZ

Read Greg's blog for more info on the considerations and calculations made in this episode:

https://www.gregfoot.com/post/should-you-switch-to-an-electric-car

Electric Vehicles: Should you switch? In the first of this new series Greg runs Julian’s suggested wonder-product through the evidence mill and asks whether electric vehicles (EVs) really are the best thing since sliced bread? Julian has heard that switching his old petrol-guzzling banger for a shiny new EV will make him greener? But will it? Electric cars are said to be ‘cleaner’ and ‘cheaper’ to run, but with a higher purchase price than their petrol equivalent - and a greater environmental footprint of manufacture - how many miles would Julian need to drive before his fuel savings off-set these initial costs - both financially and environmentally? Greg tests one of the most popular cars in the UK and hears from experts including Mike Berners-Lee & Vicky Parrot to conclude whether electric vehicles are worth the hype, and your money. And he wants YOUR suggestions for what to investigate next!

Is there something you keep seeing on TV - or hearing about on a podcast? Have you spotted something trending on Instagram or TikTok and you want to know if it delivers?

Send us your suggestions to sliced.bread@bbc.co.uk or send it to Greg direct on twitter or instagram where he’s @gregfoot PRESENTER: GREG FOOT PRODUCER: JULIAN PASZKIEWICZ

Whether it’s cutting out the background chatter to hear the radio, or drowning out the snoring coming from the room next door, the promise of noise cancelling headphones is enticing. But do they live up to the marketing hype?

Are they The Best Thing Since Sliced Bread, or BS?

Greg Foot is joined by BBC 6 Music DJ & Host Mary Anne Hobbs, who lends her professional ear to a pair of noise cancelling headphones. While acoustic engineer Professor Trevor Cox unpicks the science fact from the science fiction.

Presenter: Greg Foot Producer: Beth Eastwood

Teeth whitening toothpastes, strips and gizmos are more popular than ever. But what is the evidence that any of them actually work? And what about the HiSmile Teeth Whitening Kit that's been doing the rounds on social media?

Are these products The Best Thing Since Sliced Bread or marketing BS?

Greg Foot talks to fashion commentator and broadcaster, Grace Woodward about her experience with these products while Professor Martin Ashley, Consultant in Restorative Dentistry at the University Dental Hospital of Manchester, is on hand to separate the science fact from the science fiction.

Presenter: Greg Foot Producer: Beth Eastwood

We all know that sunscreen helps to protect our skin from the sun’s burning rays, but are you sure you’re using the right one? Do you struggle to untangle the UVAs from the UVBs, and the SPFs from the star-ratings?

Greg Foot talks to Antonia Mariconda, beauty writer and founder of the Safety in Beauty Campaign, who knows just how baffled consumers are.

On hand to decode the sunscreen labelling is Dermatologist, Dr Andrew Birnie, from East Kent Hospital University NHS Foundation Trust. Common claims, such as ‘waterproof’ and ‘reef safe’ are also put through the evidence mill.

Producer: Beth Eastwood

CBD, short for cannabidiol, is one of the big buzzwords in health and well being products. A naturally occurring molecule of the cannabis plant, it’s popping up in everything - aside from the CBD oil tinctures, you can now eat it, down it in drinks, vape it, lather it on your skin and soak in it. You can even buy sports leggings infused with it. Consumer interest in CBD-based products shows no sign of abating, with enthusiasts claiming a whole host of benefits from relieving anxiety, to easing pain and helping us sleep.

The theory behind how CBD might work seems promising - CBD shares similarities with endocannabinoids, produced naturally in the body, which help to regulate stress, sleep, metabolism, memory, inflammation, and immunity. Given the deluge of different CBD-based products, should we really believe the hype?

Greg Foot talks to beauty columnist Sali Hughes and Saoirse O’Sullivan, an expert in cannabinoid research, to find out if these products really are The Best Thing Since Sliced Bread. Produced by Beth Eastwood.

Can caffeine hair products prevent our hair from getting thinner as we get older and, even better, reverse the process? Or does this ingredient just end up going down the plughole?

Joining Greg Foot in the studio is Ian Carmichael, Senior Director in Styling at Trevor Sorbie, the Hair Salon, who styles many high profile heads including Her Majesty the Queen’s.

Dermatologist Dr Paul Farrant, from Brighton and Sussex University Hospitals Trust, is on hand to put two products through the evidence mill, separating the facts from the fads to reveal whether caffeine hair products really are The Best Thing Since Sliced Bread. Produced by Beth Eastwood.

What's the best - and most humane - way to get rid of pests?

For some of us Tom and Jerry might be the sum total of our knowledge of the struggle between domestic life and unwanted rodents. But for listeners Colin and Mary, things are getting much more real! Colin wants to know if the plug-in devices he's seen that promise to deter rats and mice using ultrasonic actually work. Mary has caught mice and then released them back into the wild in nearby woodland, believing it's the more humane way to deal with the problem. But is it?

With the help of Natalie Bungay from the British Pest Control Association and Rob Young, Professor of Wildlife Conservation at the University of Salford, Greg Foot sets out to find the answers, hoping to nibble at the metaphorical cheese without getting caught in the figurative trap (or something).

All of the ideas for our investigations come from you, our listeners, and we're always on the lookout for more. If you have seen a wonder product that claims to make you happier, healthier or greener and want to know if it is SB or BS then please do send it over on email to sliced.bread@bbc.co.uk or drop us a message or voicenote on Whatsapp to 07543 306807

PRESENTER: GREG FOOT PRODUCER: SIMON HOBAN

As the Goop Lab TV series lands in Netflix accounts, Greg Foot and guests look at the scientific evidence for the therapies tried out by Goop staff, including Gwyneth Paltrow herself.

Dr James Rucker, lead on the psilocybin trials at King's College, London, talks about psychedelic therapy, and Dr Sarah Davey, Lecturer in Sport & Exercise Science, Oxford Brookes University, discusses the evidence for cold water therapy. To check out if there's any science behind vampire facials and other skin treatments Greg turns to Dr Nisith Sheth, dermatologist at St John’s Institute of Dermatology, Guy’s and St Thomas’ Hospitals. Professor Edzard Ernst, Emeritus Professor of Complementary Medicine at the University of Exeter, is our reviewer of the evidence for the effects of Reiki and other forms of energy healing. And gynaecologist and pain specialist, Dr Jen Gunter, author of The Vagina Bible, is our expert on what the Goop Lab says about how women can have better sex.

We’ve all seen athletes sporting brightly coloured stripes on the backs of their legs – but is kinesiology tape all it’s cracked up to be? Presenter Greg Foot is joined by Olympic medallist heptathlete Kelly Sotherton, along with consultant rheumatologist Dr Benjamin Ellis and Manchester United FC’s head of physical therapies Prof Michael Callaghan, to ask whether these products can, as some claim, help athletes train for longer and finish stronger?

Do topical pain products really relieve aching muscles? Presenter Greg Foot is joined by Olympic medallist heptathlete Kelly Sotherton, along with consultant rheumatologist Dr Benjamin Ellis and Manchester United FC’s head of physical therapies Prof Michael Callaghan, to test the cooling gels and warming sprays that promise to reach deep into painful joints.

Presenter: Greg Foot Producer: Marijke Peters Editor: Rami Tzabar Sound Editing: Giles Aspen

Can turmeric lattes prevent memory loss? Greg Foot is joined by Blur’s Alex James and experts to put claims about this ancient Indian spice to the test.

Presenter: Greg Foot Producer: Marijke Peters Studio Manager: Sue Maillot Editor: Rami Tzabar

Does kombucha boost your immune system? Greg Foot is joined by Blur’s Alex James and experts to put this fermented wonder drink to the test.

Presenter: Greg Foot Producer: Marijke Peters

Vitamin C is one of the most popular products used to combat the common cold. But does it work? Greg Foot reviews the evidence for both vitamin C and zinc to see if they are The Best Thing Since Sliced Bread.

He’s joined again by podcaster, rapper and actor Scroobius Pip and virologist Wendy Barclay from Imperial College London. The team will be giving you their Top Tips, backed by real scientific evidence, for beating the winter bugs.

Presenter: Greg Foot Producer: Michelle Martin Researcher: Amelia West Studio Managers: Emma Harth, John Boland Editors: Deborah Cohen, Rami Tzabar

The Best Thing Since Sliced Bread is a BBC Science Radio Unit Production.

With offices and schools set to a soundtrack of sniffles, science presenter and YouTuber Greg Foot is on mission to find 'The Best Thing Since Sliced Bread' to beat the winter bugs.

Joining him for this double episode is rapper, podcaster and actor Scroobius Pip, a man for whom protecting his voice is a professional priority. Under the microscope today are those handy hand sanitisers that promise to stop bacteria and viruses in their tracks.

Virologist Wendy Barclay from Imperial College London and microbiologist Lindsay Hall from the Quadram Institute in Norwich are both on hand to help separate the facts from the fads, to decide if these products really are The Best Thing Since Sliced Bread.

Presenter: Greg Foot Producer: Michelle Martin Researcher: Amelia West Studio Managers: Emma Harth, John Boland Editors: Deborah Cohen, Rami Tzabar

The Best Thing Since Sliced Bread is a BBC Science Radio Unit Production.

Will activated charcoal, which these days can be found in everything from face creams to smoothies, really purify your pores? Science presenter and YouTuber Greg Foot is on a mission to bust marketing BS, looking for the facts behind the fads and challenging products’ bold claims with scientific evidence.

In the second episode, Greg is joined by actress and beauty blogger Rebecca Humphries, consultant dermatologist Dr Emma Wedgeworth and Cambridge Professor of Chemistry, Melinda Duer to explore the science behind activated charcoal - could it act as a 'magnet' to draw out dirt and pollution from your pores as some products claim?

Presenter: Greg Foot Producer: Graihagh Jackson Studio Manager: John Boland Editor: Rami Tzabar

The Best Thing Since Sliced Bread is a BBC Science Radio Unit Production

Can collagen face cream reduce wrinkles and make your skin more youthful? Science presenter and YouTuber Greg Foot is on a mission to bust marketing BS, looking for the facts behind the fads and challenging products’ bold claims with scientific evidence.

In the first episode, Greg is joined by actress and beauty blogger Rebecca Humphries, consultant dermatologist Dr Emma Wedgeworth and Cambridge Professor of Chemistry, Melinda Duer to explore the science behind collagen face creams – can they really ‘boost’ and ‘support’ collagen production as some products claim?

Presenter: Greg Foot Producer: Graihagh Jackson Studio Manager: John Boland Editor: Rami Tzabar

The Best Thing Since Sliced Bread is a BBC Science Radio Unit Production

From kombucha to collagen, activated charcoal to sports tape, Greg Foot is on a mission to bust the marketing BS, looking for the facts behind the fads and to challenge a product’s bold claims with scientific evidence.

Joined by leading experts and friends from the world of podcasting and social media, Greg investigates the latest crazes to hit the high street to work out if these wonder products really are the best thing since sliced bread. (all subject to updates)

Listener Jennifer is considering switching contact lenses, if there's an alternative that's more eco friendly. She's not alone - we've had lots of questions about eyecare options, and whether the fancy features some lenses offer are worth the extra cash. Joining Greg and Jennifer in the studio to talk all things contact lens are Daniel Hardiman-McCartney, a clinical adviser to the College of Optometrists, and Sarah Smith - a research optometrist who's studied the environmental impact of these tiny pieces of plastic.

Have you seen a product that claims to make you happier, healthier or greener? Want to know if it is SB or BS? Then please do send it over on email to sliced.bread@bbc.co.uk or drop us a message or voicenote on Whatsapp to 07543 306807

PRESENTER: Greg Foot PRODUCER: Tom Moseley

Is it worth paying more for premium car tyres?

There's a huge range of car tyres to choose from and the price differences between them can be significant. So do you really need to pay more to get a good tyre?

Listener Ian runs a car maintenance business and wants to know if the budget tyres he's been fitting are the right choice. Will they last as long and be just as safe? What do the different ratings on the labels you can see online mean? And as he moves towards electric cars he's also keen to know whether they need a special sort of tyre.

With the help of two experts in the field, Greg Foot 'treads' through the studies and the science to find out more. It's how he rolls (we'll stop now).

As ever we are still looking for your suggestions of products to look into. If you've seen something promising to make you happier, healthier or greener and want to know if it is SB or BS please do send it over on email to sliced.bread@bbc.co.uk or drop us a message or voicenote on Whatsapp to 07543 306807

PRESENTER: GREG FOOT PRODUCER: SIMON HOBAN

Lots of different types of period products claim to be eco friendly, from menstrual cups to period pants and reusable pads. But how do their environmental credentials stack up? That's what listener Sam wants to know - and she's not the only one asking about not just the impact of these so called sustainable period products on planetary health, but also on women's health too. Joining Sam and Greg for this one are Natalie Fee, founder of the non profit City to Sea, who campaigns for "plastic-free periods", and Dr Nicola Tempest, a senior lecturer in gynaecology at Liverpool University.

And if you've seen something promising to make you happier, healthier or greener and want to know if it is SB or BS please do send it over on email to sliced.bread@bbc.co.uk or drop us a message or voicenote on Whatsapp to 07543 306807

PRESENTER: GREG FOOT PRODUCER: TOM MOSELEY

The UK market for air care products is expected to grow to £674 million this year - and for this episode, we're investigating just how these products tackle bad smells in our homes. Can air fresheners really "eliminate" stinky odours with science, or do they just smell nicer? And what does using them do for our air quality? That's what listener Conor from Manchester wants to know. He joins Greg in the studio, alongside two experts - Nicola Carslaw, a professor in indoor air chemistry‘ at the University of York, and emeritus professor of chemo-reception at the University of Manchester, Krishna Persaud.

Have you seen something promising to make you happier, healthier or greener? Want to know if it's SB or BS? Please let us know - you can email sliced.bread@bbc.co.uk or drop us a message or voicenote on Whatsapp to 07543 306807.

PRESENTER: GREG FOOT PRODUCER: TOM MOSELEY

Is an LED face mask the secret to brighter, clearer, more youthful skin?

Greg Foot is back with a new series of Sliced Bread to run a whole new batch of your suggested wonder products through the evidence mill. From car tyres to contact lenses, air fresheners to LED face masks, Greg will separate science fact from marketing fiction as he investigates whether each product is 'the best thing since sliced bread' or 'marketing BS'.

There's a slightly new sound to this new series: having recorded most of the previous episodes remotely, Greg is going to be joined in the studio by the listener and experts to investigate the wonder products together!

First to join Greg is Helen Leneghan from County Down. She’s seen LED Face Masks all over social media and wants to know if they actually work. Do they reduce your wrinkles? Will they give you a radiant glow? And can they help with some skin conditions like acne or rosacea?

As ever, if YOU have seen something promising to make you happier, healthier or greener and want to know if it is SB or BS please do send it over on email to sliced.bread@bbc.co.uk or drop us a message or voicenote on Whatsapp to 07543 306807

PRESENTER: Greg Foot PRODUCER: Simon Hoban

Why did Safeway's UK supermarkets disappear?

Safeway was once one of our biggest supermarket chains, so why did it drop down the list of top performers before disappearing altogether?

The BBC Business journalist, Sean Farrington, looks into it and speaks to the former Safeway director, Teresa Wickham, a former Safeway supplier, Judy Garner, and the News Editor, Ronan Hegarty, from The Grocer magazine.

Alongside them all to analyse Safeway's fortunes is the self-made millionaire and serial entrepreneur, Sam White.

This episode was produced by Viant Siddique.

Toast examines the brands that reached dizzy heights only to end up…toast.

It is a BBC Audio North production for Radio 4 and BBC Sounds.

You can email the programme at toast@bbc.co.uk

Feel free to suggest topics which could be covered in future episodes.

Sliced Bread returns for a new batch of investigations in May. In the new series, Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.

Green Shield Stamps could be traded in for 'free' gifts so why did consumers abandon them?

Sean Farrington examines their rise and fall and discovers how they spawned a famous retail chain which is still trading.

The stamps were the centrepiece of an early form of loyalty scheme and were collected by tens of millions of people across the UK.

They were given out by shops with every purchase and could be exchanged for a wide range of household goods and luxury items from handbags to vacuum cleaners and even cars.

The BBC Business journalist, Sean Farrington, speaks to expert guests including:

Sir John Timpson - chairman of the retail services provider, Timpson, who dedicated a chapter of his book on 'High Street Heroes' to the Green Shield Stamp founder, Richard Tompkins.

Professor Leigh Sparks - Professor of Retail Studies at the University of Stirling.

Alongside them, analysing the stamps' fortunes is the entrepreneur, Sam White.

Toast is a BBC Audio North production for Radio 4 and BBC Sounds.

This episode was produced by Jon Douglas.

You can email the programme at toast@bbc.co.uk

Feel free to suggest topics which could be covered in future episodes.

Sliced Bread returns for a new batch of investigations in May.

In the new series, Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread.

In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.

Why did Mothercare have to close all of their UK stores?

Sean Farrington discovers what happened to the baby goods retailer which once dominated the high street.

Alongside him, analysing Mothercare's fortunes, is the entrepreneur, Sam White.

The pair hear from Tim Curtis who once ran Mothercare's website, catalogue and home delivery service; Amena Khan, a loyal Mothercare customer and Richard Lim, CEO of Retail Economics.

They chart the highs and the lows and learn how Mothercare continues to trade today, albeit in a different form.

Produced by Jon Douglas and Shanaye Mainoo-Magnone. Toast is a BBC Audio North production for Radio 4 and BBC Sounds.

You can email the programme at toast@bbc.co.uk

Feel free to suggest topics which could be covered in future episodes.

Sliced Bread returns for a new batch of investigations in May. In the new series, Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.

Will anyone iron clothes in the future?

Dough is a new series from BBC Radio 4 which looks at the business behind profitable, everyday products, assessing where the smart money is going now and what that could mean for all of us in the years ahead.

In this episode, the entrepreneur Sam White speaks with experts from the world of garment care including:

Leonor Carneiro - the category leader for garment care at Versuni which owns the Philips brand and is famous for making products including steam irons.

Veronika Kandusova - a consultant with the market researchers, Euromonitor International.

Frej Lewenhaupt - the CEO and co-founder of Steamery, a company which makes garment steamers.

Also joining them is the technology expert and applied futurist, Tom Cheesewright, who offers his insight and predictions on what might be coming beyond the current production pipeline.

Together, they explore the products that are replacing traditional irons, explain why fewer people in the UK tend to iron today and chat about their own choices for game changing and least effective ironing innovations.

We hear why clothes iron manufacturers are yet to crack battery power and get a tantalising glimpse of how even more of us might avoid ironing in the future.

Produced by Jon Douglas. Dough is a BBC Audio North production for BBC Radio 4 and BBC Sounds.

Sliced Bread returns for a new batch of investigations in August when Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread.

In the meantime, Dough is available in the Sliced Bread feed on BBC Sounds

Why was the video sharing platform, Vine, closed down?

Sean Farrington discovers what happened to the app which pioneered short, shareable videos on social media.

Sean speaks to one of Vine's founders, Rus Yusupov, the Vine content creator, Eric Dunn, and the BBC's Technology Editor, Zoe Kleinman.

Alongside them all analysing Vine's fortunes is the self-made millionaire and serial entrepreneur, Sam White.

Produced by Viant Siddique. Toast is a BBC Audio North production for Radio 4 and BBC Sounds.

You can email the programme at toast@bbc.co.uk

Feel free to suggest topics which could be covered in future episodes.

Sliced Bread returns for a new batch of investigations in May. In the new series, Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.

Why did the restaurant chain, Little Chef, disappear from our roadsides?

Sean Farrington discovers what happened to the brand which brought us Jubilee Pancakes, Olympic Breakfasts and free lollies for the kids.

At its peak, Little Chef had over 400 restaurants on most of our major highways and a turnover well in excess of £100m.

So, how did such a successful business ultimately end up toast?

Sean speaks to Fiona Alper who was married to the Little Chef co-founder, Sam Alper; the entrepreneur, Lawrence Wosskow, who once owned Little Chef and Becky Parr-Phillips who started as a waitress but rose through the ranks to become Little Chef's head of operations.

Alongside them all to analyse Little Chef's fortunes is the self-made millionaire and serial entrepreneur, Sam White.

This episode was first broadcast in April 2024

Produced by Jon Douglas. Toast is a BBC Audio North production for Radio 4 and BBC Sounds.

You can email the programme at toast@bbc.co.uk

Feel free to suggest topics which could be covered in future episodes.

Sliced Bread returns for a new batch of investigations in May. In the new series, Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.

This one's all about mushrooms - not so much your chestnut, button or portobellos from the supermarket, but more the likes of lion's mane, reishi and chaga. These much-feted fungi are claimed to offer all sorts of benefits, from relaxation to disease-fighting properties. We've had loads of questions about products containing them, particularly around mushroom coffee. Is there any evidence that it's better for you than your regular brew? Listener Leon is fond of it - and wants to know if there's any science to back up his inclination. To get him some answers, we hear from a registered nutritionist and a mycologist (fungi expert) who's just written a book all about medicinal mushrooms. So are they the best thing since Sliced Bread?

If you’ve seen an ad, trend or wonder product promising to make you happier, healthier or greener and want to know how it stacks up, then email us: sliced.bread@bbc.co.uk or send a voice note to our WhatsApp number: 07543 306807

PRESENTER: GREG FOOT PRODUCER: TOM MOSELEY

Is it better to wash your dishes by hand or use a dishwasher?

This question from listener Eve has got to be among the most hotly contested debates out there. She wants to know which method uses more water and which is more energy efficient. To find out, we speak to a man who's spent decades studying the differences - Professor Rainer Stamminger from the University of Bonn in Germany.

Eve also wants to know about the eco settings on dishwashers: how can they save money if they take so much longer? And should you pre-rinse before putting things in?! In short, does the evidence around dishwashers stack up (sorry!) Greg will be finding out.

PRESENTER: Greg Foot PRODUCER: Simon Hoban

Greg's getting electric for this one, as he tries out a tens machine. Tens (transcutaneous electrical nerve stimulation) is a type of pain relief which uses a mild electrical current. They're marketed at all types of pain - but do they work? The NHS isn't convinced yet. Listener Patrick is one of many who have asked about these devices, so we got in touch with a a professor who's studied them for 40 years. Also - another type of electrotherapy is a circulation booster. These circular devices claim to be able to help sore legs by activating the muscles. On behalf of listener Rick, Greg finds out what the evidence is for their effectiveness.

PRODUCER: TOM MOSELEY PRESENTER: GREG FOOT

Which is the cream of the crop for your health and the planet?

The supermarket shelves are fairly bulging with plant-based options for people who either prefer not to drink cow's milk or can't for health reasons like an allergy. Some have been around for a while - like soy, almond and the current best-seller in the UK, oat - but there are newer additions to consider like hazelnut, hemp and a drink made from dried peas.

Listener Sian wants to know if these milk alternatives are better for her health and the environment than cow's milk. Do they give you the same nutritional benefits? And what's the carbon footprint of each, and how do they compare to the production of cow's milk?

If you’ve seen an ad, trend or wonder product promising to make you happier, healthier or greener and want to know if there’s any evidence behind it, then email us: sliced.bread@bbc.co.uk or you can send a voice note to our WhatsApp number: 07543 306807

Presenter: Greg Foot Producer: Simon Hoban

Millions of us use fitness tracker watches to count how many steps we take each day - they also claim to tell us how we're sleeping and how stressed we are, as well as a host of other metrics. But how accurate are they - and are they the best thing since Sliced Bread? We've had loads of requests from you to look into fitness trackers. So with multiple watches on each arm, Greg's being put through his paces at Loughborough University under the watchful eye of Dr James Sanders, senior research associate in digital health for lifestyle.

PRESENTER: GREG FOOT PRODUCER: TOM MOSELEY

What cookware is best for your kitchen?

There is a bewildering array of pots and pans on offer: stainless steel saucepans, cast iron skillets, even 10-in-1 cookware systems that use layers of various materials. But do they deliver on their promises to help you reach culinary bliss? Listener Emily wants to know if the ones she's seen live up to the hype or are just marketing BS. What do all the materials do? What about cleaning them? And just what is the much-vaunted 'hot spot' that lights up at a certain temperature?!

There are also lingering concerns about non-stick coatings. Are they safe? And what about the alternatives if you're not sure?

Please do keep your suggestions coming of wonder products for me to investigate. If you’ve seen an ad, trend or wonder product promising to make you happier, healthier or greener and want to know if there’s any evidence behind it, then email us: sliced.bread@bbc.co.uk or you can send a voice note to our WhatsApp number: 07543 306807

Presenter: Greg Foot Producer: Simon Hoban

Gum disease is extremely common in dogs - with some breeds particularly badly affected. So it's no surprise there are all sorts of products on the market offering to clean your pet's teeth - which might be particularly appealing if you don't fancy grabbing a toothbrush and doing the job yourself. As well as chews of many shapes and sizes, there are additives to water - and even seaweed extract to sprinkle on their food. It's a serious business. We've had loads of emails asking us to look into this one - including from listener Sarah, who wants help on behalf of Heidi, her Miniature Schnauzer. To get them some answers, Greg hears from a pet nutritionist and a vet who's an expert in dental care. Are dog dental chews the best thing since sliced bread?

PRESENTER: GREG FOOT PRODUCER: TOM MOSELEY

Are more expensive face creams worth it?

I'm back with a new series of Sliced Bread to investigate more of your suggested wonder products and I'm starting with one of the most-requested so far. Do more expensive moisturisers, serums and oils live up to the hype? Can they result in smoother, brighter, firmer, healthier skin or is it all just marketing BS?

Listener Aristide wants to know whether one of the most expensive products on the market - 'Creme de la Mer' (£80 for 15ml) - has any more evidence to back it up than the cheap moisturiser he uses from the High Street. And listener Fiona is keen to hear about the effectiveness of retinol, one of the most popular ingredients used in creams and serums today.

In this episode I'll get the answers with the help of our expert, consultant dermatologist Dr Emma Wedgeworth.

Once again this series I'm looking for more of your suggestions for wonder products to investigate. If you’ve seen an ad, trend or fad rproduct promsing to make you happier, healthier or greener and want to know if there’s any evidence behind it, then email us: sliced.bread@bbc.co.uk or you can send a voice note to our WhatsApp number: 07543 306807

Presenter: Greg Foot Producer: Simon Hoban

How do modern hairdryers protect against damage from excessive heat?

Dough is a new series from BBC Radio 4 which looks at the business behind profitable, everyday products and considers how they might evolve in the future.

In this episode, the entrepreneur Sam White speaks with experts from the world of hairdryer manufacturing, namely Robyn Coutts, a senior design manager at Dyson and Andrew McDougall, director of beauty and personal care research at the analysts, Mintel.

Also joining them is the technology expert and applied futurist Tom Cheesewright, who offers his insight and predictions on what might be coming beyond the current production pipeline.

Together, they explore how hairdryers went from gas-powered chimneys to handheld devices, examine some of the latest trends and technology before giving their expert opinions on game-changing - and pointless - hair drying innovations.

Dough looks at where the smart money's going now and what that could mean for all of us in the years ahead.

Produced by Viant Siddique and Jon Douglas.

Dough is a BBC Audio North production for BBC Radio 4 and BBC Sounds.

Sliced Bread returns for a new batch of investigations in August when Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread.

In the meantime, Dough is available in the Sliced Bread feed on BBC Sound

What went wrong at Jamie Oliver's UK restaurant chain, Jamie's Italian?

While Sliced Bread takes a break we serve up… Toast. A study of the spectacular failures of brands which had promised so much to consumers.

In each episode, the presenter and BBC business journalist, Sean Farrington, examines one big idea. What did it promise? Why did it fail? What can we learn from it today?

In this episode, which was first broadcast in February 2024, Sean and the serial entrepreneur, Sam White, examine the fortunes of Jamie Oliver's Italian restaurant chain. It was a big hit when it launched so why couldn't it maintain that success?

Expert commentators - and Jamie Oliver himself - reflect on what made his restaurants so special and what led to their demise.

Tracey MacLeod, formerly of The Independent, was one of the first restaurant critics through the door; Emma Lake, Assistant Editor at The Caterer magazine wrote extensively about Jamie's Italian; Peter Harden, the co-founder of Harden's Restaurant Guide, has trawled through reviews of Jamie's Italian to see what changed from the customers' perspective.

Jamie Oliver's perspective comes through an interview he did with Kirsty Young for the Radio 4 series 'Young Again'.

If you have an idea for a topic with a toast moment then you can email the programme at toast@bbc.co.uk

Sliced Bread returns for a new batch of investigations in February. In the new series, Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.

Toast is produced by Jon Douglas and Viant Siddique and is a BBC Audio North production for Radio 4 and BBC Sounds.

Why did the best-selling computer manufacturer, Commodore, go bust?

While Sliced Bread takes a break we serve up… Toast. A study of the spectacular failures of brands which had promised so much to consumers.

In each episode, the presenter and BBC business journalist, Sean Farrington, examines one big idea. What did it promise? Why did it fail? What can we learn from it today?

In this episode, Sean examines the remarkable story behind the man who founded one of the world's best-selling computer manufacturers.

Commodore computers were huge in the 1980s so why couldn't the business adapt to survive in an age when computing became even more popular?

Expert commentators and employees reflect on why the company was so successful and what led to its demise.

Guests include David Pleasance - a former Commodore international executive and later joint managing director of its UK arm; Tim Danton - editor-in-chief of PC Pro magazine; Dan Wood - a Commodore computers enthusiast.

Alongside them is the self-made millionaire and serial entrepreneur, Sam White, to analyse the missteps that changed the brand’s fortunes.

If you have an idea for a topic with a toast moment then you can email the programme at toast@bbc.co.uk

Sliced Bread returns for a new batch of investigations in February. In the new series, Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.

Toast is produced by Jon Douglas and Viant Siddique and is a BBC Audio North production for Radio 4 and BBC Sounds.

Why did the package holiday brand, Club 18-30, disappear?

While Sliced Bread takes a break we serve up… Toast. A study of the spectacular failures of brands which had promised so much to consumers.

In each episode, the presenter and BBC business journalist, Sean Farrington, examines one big idea. What did it promise? Why did it fail? What can we learn from it today?

In this episode, which was first broadcast in January 2024, Sean learns why Club 18-30 fell out of favour.

Its package holidays for young people were a hit for decades so why couldn't it keep going?

Sean speaks to holidaymakers who remember their Club 18-30 experiences well.

A former manager explains how they hoped to keep the brand going and why that proved impossible.

Alongside them all, analysing the business' fortunes is the self-made millionaire and serial entrepreneur, Sam White.

You can email the programme at toast@bbc.co.uk

Feel free to suggest topics which we could cover in future episodes

Sliced Bread returns for a new batch of investigations in February. In the new series, Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.

Toast is produced by Jon Douglas and Viant Siddique and is a BBC Audio North production for Radio 4 and BBC Sounds.

Why did sales of the best-selling soft drink, Sunny Delight, suddenly bomb in the 1990s?

While Sliced Bread takes a break we serve up… Toast. A study of the spectacular failures of brands which had promised so much to consumers.

In each episode, the presenter and BBC business journalist, Sean Farrington, examines one big idea. What did it promise? Why did it fail? What can we learn from it today?

In this episode, which was first broadcast in January 2024, Sean learns why sales of Sunny Delight faltered in the UK after an extraordinarily successful launch.

Sean speaks to some of the people who worked on the brand, hearing how it became a hit before a series of unfortunate coincidences undermined its popularity.

The self-made millionaire and serial entrepreneur, Sam White, is alongside him, analysing the missteps that changed Sunny Delight's fortunes.

'Sunny D', as it is known today, is still sold in some UK supermarkets. It has different owners and ingredients but it has never matched the incredible sales figures which it achieved in its early days.

CORRECTION: Beta-carotene is not a B vitamin as briefly referenced in this programme. It's turned into vitamin A in the body.

You can email the programme at toast@bbc.co.uk

Feel free to suggest topics which we could cover in future episodes

Sliced Bread returns for a new batch of investigations in February. In the new series, Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.

Toast is produced by Jon Douglas and Viant Siddique and is a BBC Audio North production for Radio 4 and BBC Sounds.

Why did Toys R Us have to close all of its UK superstores in 2018?

While Sliced Bread takes a break we serve up… Toast. A study of the spectacular failures of brands which had promised so much to consumers.

In each episode, the presenter and BBC business journalist, Sean Farrington, examines one big idea. What did it promise? Why did it fail? What can we learn from it today?

In this Christmas special, Sean examines the charming story behind one of our best-known toy brands before hearing how it faltered.

Expert commentators and employees reflect on why the business had been so successful and what went wrong.

Alongside them is the self-made millionaire and serial entrepreneur, Sam White, to analyse the missteps that changed the brand’s fortunes.

Together, they hear how Toys R Us is making a comeback in the UK.

You can email the programme at toast@bbc.co.uk

Feel free to suggest topics which we could cover in future episodes.

From big tech to high street retail and, of course, food, Toast tackles the business ideas that, one way or another, ended up cooked.

Sliced Bread returns for a new batch of investigations in February. In the new series, Greg Foot will investigate more of the latest so-called wonder products to find out whether they really are the best thing since sliced bread. In the meantime, Toast is available in the Sliced Bread feed on BBC Sounds.

Toast is produced by Jon Douglas and Viant Siddique and is a BBC Audio North production for Radio 4 and BBC Sounds.

Can changing your sheets be good for you - and the environment? We've had loads of requests to look at the best way to make your bed - specifically, how all the different options for sheets and pillowcases compare. Cotton seems to be king when it comes to popularity, but is it justified? Listener Rosemary is a linen fan, but wants to know whether eucalyptus bedding lives up to the hype. How do its eco credentials stack up - and what does it feel like? Speaking of feel - silk pillow cases have a reputation for luxury, but listener Cathy wants to know whether sleeping on one will - as the marketing promises - also help your skin and your hair. Could it really help with acne? We'll hear from a dermatologist and a fabrics expert - and there are some surprising answers to this one!

If you've seen a claim you'd like investigating, you can email the team on sliced.bread@bbc.co.uk or send us a WhatsApp voice note on 07543 306807.

PRESENTER: GREG FOOT PRODUCER: TOM MOSELEY

Which Christmas tree is better for the environment - real or fake?

Everyone loves the smell of a freshly cut pine or spruce but the vast majority of them go to landfill. So would a plastic tree be better?

Listener Eleanor wants to have a more sustainable Christmas and has some great questions. Is there a better way to dispose of your real tree? How about a pot-grown tree you could use again the next year? And she's even heard about the possibility of renting a Christmas tree - the same one, year after year! Is that a thing?

In this frankly festive episode I attempt to get to the root of the problem (sorry!) by speaking to an ecological expert and a journalist who's attempted to rent the whole of Christmas.

Presenter: Greg Foot Producer: Simon Hoban