And she said the same tank of water could be used for up to eight hours at a time, reducing the sanitising effect.
Experts warn that anything grown in soil can potentially have come into contact with harmful bugs. The bacteria are released by cattle and get into groundwater, potentially then ending up on fruit and vegetables.
Salad requires plenty of water to grow and if that water is contaminated by bugs such as listeria or salmonella, they can live in salad cells until eaten – and washing it does not make a difference.
In 2013, Sainsbury's recalled all its own-brand bagged watercress because of an E. coli outbreak that made 18 people ill.
Professor Hugh Pennington, emeritus professor of microbiology at the University of Aberdeen, has previously claimed that certain types of bacteria found in pre-cut salad bags could be almost impossible to kill.
His claim followed a Health Protection Agency investigation into an outbreak of Cryptosporidium infections, linked to ready-to-eat salads, affecting around 300 people in England and Scotland in May 2012.
In a subsequent analysis of different salad vegetables a significant association was found between infection and the consumption of pre-cut spinach.
In her book, Miss Blythman highlights the secret ingredients used by the food industry that are often not declared on the packaging.
Many of them are down to advances in technology and are substitutes for real food ingredients, making the finished product cheaper, for example, an enzyme that replicates the taste of butter and a citric acid that can be painted onto fruit and vegetables to keep them looking fresh.
She warns that certain food labels may not mean quite what they seem. “Added vitamins” can include a man-made vitamin C synthesised from the fermentation of GM corn while artificial vitamin E is commonly derived from petrol.
She warns there is barely any difference between “natural” colourings and flavourings and artificial ones whilst that “diet” sweeteners can cause weight gain and increase the risk of Type 2 diabetes.
Food that has been “packaged in a protective atmosphere” means that it has been “gassed” in modified air to extend its shelf life.
Experts warn that anything grown in soil can potentially have come into contact with harmful bugs. The bacteria are released by cattle and get into groundwater, potentially then ending up on fruit and vegetables.
Salad requires plenty of water to grow and if that water is contaminated by bugs such as listeria or salmonella, they can live in salad cells until eaten – and washing it does not make a difference.
In 2013, Sainsbury's recalled all its own-brand bagged watercress because of an E. coli outbreak that made 18 people ill.
Professor Hugh Pennington, emeritus professor of microbiology at the University of Aberdeen, has previously claimed that certain types of bacteria found in pre-cut salad bags could be almost impossible to kill.
His claim followed a Health Protection Agency investigation into an outbreak of Cryptosporidium infections, linked to ready-to-eat salads, affecting around 300 people in England and Scotland in May 2012.
In a subsequent analysis of different salad vegetables a significant association was found between infection and the consumption of pre-cut spinach.
In her book, Miss Blythman highlights the secret ingredients used by the food industry that are often not declared on the packaging.
Many of them are down to advances in technology and are substitutes for real food ingredients, making the finished product cheaper, for example, an enzyme that replicates the taste of butter and a citric acid that can be painted onto fruit and vegetables to keep them looking fresh.
She warns that certain food labels may not mean quite what they seem. “Added vitamins” can include a man-made vitamin C synthesised from the fermentation of GM corn while artificial vitamin E is commonly derived from petrol.
She warns there is barely any difference between “natural” colourings and flavourings and artificial ones whilst that “diet” sweeteners can cause weight gain and increase the risk of Type 2 diabetes.
Food that has been “packaged in a protective atmosphere” means that it has been “gassed” in modified air to extend its shelf life.
Revealed: The drinks you didn't know you could order at Starbucks
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the coffee retailer’s website… but how many of them do you know? From flu
remedies to Harry Potter-inspired beverages, we highlight the weird and the
wonderful brews and infusions.
107 Comments
Revealed: The menu items you didn’t know you could order at McDonald's
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dishes you can get at McDonald's
44 Comments
Food labels deciphered: what "washed and ready to eat" really means
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reactions, asthma and a host of other ailments. Here are the food label
nasties to look out for
10 Comments
KFC to sell edible coffee mug named 'Scoff-ee Cup'
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does it work?
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Owl-themed cocktail bar in London sparks concerns over birds’ welfare as thousands sign petition
Thousands of campaigners sign petition to stop pop-up owl bar from opening in
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30 Comments
Man breaks bacon-eating world record
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minutes at a contest in Florida
6 Comments
Mother's Day: 10 cake recipes that will make your mum smile
If you're planning to treat your mum this Mother's Day, don't forget to make
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a restaurant sustainable? Bee Wilson munches kale fed on fish waste
to find out
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Pizza app translates your stomach rumbles into an order
Domino's new "Tummy Translator" app can apparently interpret your gurgles to
find our what kind of pizza you're craving
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Are these the world's most OTT burgers? And yes, they are edible
Fed up of plain burgers for lunch, graphic design duo Thomas Weil and Quentin
Weisbuch took it upon themselves to experiment and create acrazy - but still
edible - new version of the classic each week.
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10 perfect pies to try before you die
We've got all bases covered in honour of National Pie Week: from Diana Henry's
delectable venison pie served with butermilk mash, to Rick Stein's silky
fish dish laced with truffle oil and Momofuku's scarily more-ish "crack
pie"
1 Comment
How to sober up quickly: what scientists have discovered
As researchers find that ‘cuddle hormone’ oxytocin could act as an antidote to
alcohol, we round up other surprising ways to combat the effects of booze
Is this the world's most expensive ice cream?
Dubai café launches truffle and saffron flavoured ice cream, for £530 a
scoop
3 Comments
Heavy drinkers have the lowest IQs, study claims
New findings show a link between a lower IQ and and alcohol consumption
amongst young men
169 Comments
Rejoice – five coffees a day are good for you
This is a moment for celebration – assuming you're not currently on more
than five coffees a day. The only question is: what sort? And when?
9 Comments
Britain should celebrate inventor of chocolate as much as we do Brunel
Liz Truss, the Environment Secretary, says Britain should celebrate the
invoentors of the chocolate bar and fizzy drinks as much as they do Robert
Stephenson and Isambard Kingdom Brunel
National Toast Day: recipes to turn a slice of bread into a feast
Toast is the ultimate comfort food, but it's becoming increasingly chic, says
Diana Henry
1 Comment
Can the Scots beat the Japanese at saké?
As Britain's first saké brewer gets the green light, Fiona Sims
finds out how to sound like an expert when you're faced with a bottle of
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Daylesford crowned the UK's most sustainable restaurant
A Cotswold café and a Caithness fish restaurant are crowned the most
Sustainable Restaurants of the Year at the 2015 awards
1 Comment
Owl-themed cocktail bar to open in London
If you thought the Porridge Café was weird, prepare yourself for the drinking
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