50 Fun Facts About Food Waste

Per UNEP's 2021 Food Waste Index, roughly what share of the world's food waste came from households?

The same report put food service at 26 percent and retail at just 13 percent, so the biggest bin is the one in your kitchen.

The UN estimates food loss and waste generate what share of global greenhouse gas emissions?

That is more than the entire aviation industry, which is one reason wasted food ranks high on climate to-do lists.

The UN says households worldwide throw away edible food equivalent to how many meals every single day?

That works out to about 1.3 meals a day for every person on Earth affected by hunger.

The US EPA estimates what share of methane escaping municipal landfills comes from buried food scraps?

Food breaks down fast and without oxygen underground, which is exactly the recipe for methane rather than harmless compost.

Over 100 years, methane from rotting landfill food traps roughly how many times more heat than carbon dioxide?

Methane only lingers for about a decade, but it punches far above its weight while it is there.

Which date label goes on milk and meat because they can become dangerous once it passes?

Best-before dates are about quality, not safety, so a biscuit past its date is merely stale rather than risky.

Which is the only food product for which US federal law actually requires a date label?

Every other date you see on American groceries is voluntary, which is why the wording varies so wildly from brand to brand.

Which country was the first to ban supermarkets from destroying unsold food, in 2016?

Instead of binning surplus, large stores are expected to donate it to charities and food banks.

In which year did South Korea introduce its volume-based waste fee system?

Within a decade, waste generation had fallen and recycling rates had climbed sharply.

What technology bills South Korean households for exactly how much food they throw away?

Since 2005 the country has also banned food scraps from landfill entirely, sending them to feed and fertiliser instead.

Too Good To Go's 'surprise bag' of unsold food is priced at roughly what fraction of its original value?

You never get to choose what is inside, and the shop can cancel if the expected leftovers never materialise.

Which 2015 app by Tessa Clarke and Saasha Celestial-One lets neighbours give away spare food for free?

Several UK supermarket chains have piloted it as a kind of online food bank for their unsold stock.

What was the name of the Milan campaign that encouraged shoppers to buy misshapen fruit and vegetables?

North of the Alps a similar push ran under the banner 'Fruits et legumes moches', literally 'ugly fruit and veg'.

In 2022, the ugly-produce delivery service Misfits Market announced it was acquiring which rival?

Both companies built subscription boxes around fruit and vegetables that failed supermarket cosmetic standards.

John van Hengel opened the world's first food bank, St. Mary's, in 1967 in which US city?

He got the idea from a mother of ten who was feeding her family from a 'bank' of edible food behind grocery stores.

What was John van Hengel's national food-bank network, renamed in 2008, originally called?

It now runs an internal market where food banks bid with a synthetic currency called 'shares' for donated goods.

City Harvest, a food-rescue organisation founded in 1982, operates in which US city?

Fresh fruit and vegetables make up more than half of everything it rescues.

OzHarvest, the food-rescue charity founded by Ronni Kahn in 2004, operates in which country?

Kahn's lobbying changed liability laws in four states so that donors could hand over surplus food without fear of being sued.

Which campaigner staged 'Feeding the 5000' in Trafalgar Square in 2009 with food that would have been binned?

The event model has since been replicated in cities around the world by his charity Feedback.

Toast Ale, launched in 2016, brews beer using which surplus food from the catering trade?

The recipe is open source, and Marks & Spencer later had Adnams brew a range from its sandwich suppliers' offcuts.

Selina Juul's 'Stop Wasting Food' movement helped which country cut food waste 25% from 2010 to 2015?

The volunteer-run group was founded in 2008 and has no permanent membership.

Which consumer campaign did the UK charity WRAP launch in 2007?

Within two years it claimed to have helped two million households and kept 137,000 tonnes out of the bin.

The British charity WRAP is an acronym for what?

It has worked with UNEP and the FAO on a global measurement tool for the UN's Think.Eat.Save initiative.

In WRAP's landmark 2007 study of UK households, which item topped the list of avoidable food waste by weight?

Nearly half of the 359,000 tonnes binned each year had never even been touched.

The WWI US Food Administration urged 'meatless Mondays' and 'wheatless' which other day?

The agency had almost no enforcement power and relied on patriotic appeals rather than formal rationing.

Which future president ran the US Food Administration in WWI, lending his name to 'Hooverizing'?

He hated the nickname and repeatedly ordered publicists not to mention him by name.

Under Britain's 1916 wartime rules, restaurant lunches were capped at how many courses?

Dinner was capped at three, and you could be fined for feeding the pigeons.

Which Ministry of Food cartoon character urged wartime Britons to eat more of a home-grown root crop?

Lord Woolton's ministry also pushed the meatless 'Woolton pie' of carrots, parsnips and turnips under a pastry crust.

In 1943, San Francisco cafes handed out cartons for carrying leftovers home under what name?

The 'doggy bag' euphemism only really took off through newspaper etiquette columns in the 1970s.

The word 'freegan' is a portmanteau of 'free' and which other word?

Freegans extend the boycott logic beyond animal products to buying anything at all, living instead off what others discard.

The word 'freegan' was allegedly coined in 1994 by Keith McHenry, co-founder of which activist group?

The group began in 1981 as anti-nuclear 'street theater', a soup kitchen staged outside a Boston bank.

The word 'Dumpster' comes from a brand of bins first made in 1937 by which company?

The trademark had become generic by the 1970s, and 'dumpster diving' first appeared in print in 1983.

In which country is dumpster diving, called 'containern', legally treated as theft?

In practice police mostly look the other way, and only one prosecution is known, from 2009.

Which 1988 Supreme Court case ruled there is no expectation of privacy in curbside trash?

The ruling is why police can go through your bins without a warrant, and why so can anyone else.

Which archaeologist pioneered 'garbology' at the University of Arizona in 1973?

His Tucson Garbage Project found that what people say they throw away and what actually turns up in the bin rarely match.

Aerobic bacteria in a compost heap need oxygen levels above what percentage to keep doing their job?

Let the pile go anaerobic and it stops making compost and starts making methane, just like a landfill.

The Japanese food-scrap method 'bokashi' relies on which process rather than ordinary decomposition?

Because nothing rots, it can handle meat and dairy that a normal compost bin would turn into a stinking mess.

The first known anaerobic digester was built in 1859 at a leper colony in which city?

By 1895 the idea had reached Exeter, England, where sewer gas was used to run a street lamp.

Feeding kitchen swill to livestock was banned in Great Britain after the 2001 outbreak of which disease?

The EU-wide ban followed in 2003, though 27 US states still allow licensed, processed swill feeding.

From the late 1800s to mid-1900s, cities steamed collected 'garbage' and fed it to which animals?

Some municipalities ran their own piggeries specifically to dispose of the city's kitchen scraps.

What was Xi Jinping's 2020 campaign urging restaurants to serve one fewer dish than diners called?

A draft law even proposed fining broadcasters who promoted binge-eating videos.

Which Kenyan Nobel laureate made the Japanese word 'mottainai' ('what a waste') an environmental slogan at the UN?

She used it to sum up the four Rs of reduce, reuse, recycle and repair, and it entered the Oxford English Dictionary in 2025.

Researchers use the term 'metabolic food waste' to describe what?

It is estimated at about 10 percent of all food that reaches consumers, and it never shows up in any bin audit.

Which change to how meals are served has been shown to cut the amount restaurant diners leave uneaten?

Swapping disposable plates for reusable ones and trimming portion sizes also reduced leftovers.

Which book of the Bible tells of a widow gleaning grain to feed herself and her mother-in-law Naomi?

Leviticus and Deuteronomy ordered farmers to leave field edges and dropped grain for the poor, and gleaning networks still do this today.

What is Singapore's only landfill, whose life the Zero Waste Masterplan aims to extend, called?

The offshore site was projected to fill by 2035, and the plan aims to cut daily waste by 30 percent.

The UN's International Day of Awareness of Food Loss and Waste falls on which date?

It is co-convened by the FAO and UNEP, which between them measure the world's food loss and food waste.

Nigeria's agriculture ministry reports that roughly 700,000 tons of which crop rot unsold every year?

The country loses or wastes around 40 percent of its annual food production overall.

How do the Real Junk Food Project cafes, which cook with food shops would have binned, price their meals?

After a trading-standards inspection found 444 out-of-date items, it stopped serving anything past its use-by date.

The USDA estimates what share of the American food supply ends up wasted?

One 2010 estimate put the annual loss at 141 trillion calories.