A Sunday Mirror investigation has found major chains dump enough food to feed 6.3million people a year.
And our check of supermarket bins found that much of the grub they chuck out is not even past its sell-by date.
This week Prime Minister Gordon Brown urged families to be more frugal and not waste their food – but our survey shows how stores are the real villains.
Last night Friends of the Earth called for tougher measures from the Government to force supermarkets to clean up their act.
“The true cost of this waste is passed on to customers in prices and the environment in landfill, while the supermarkets’ profits continue to soar.”
According to a report by the Sustainable Development Commission, supermarkets throw away 1.6million tons of food annually.
Workers told our reporters there were simply not enough staff to reduce the prices, so it was sent to landfill, often still wrapped in plastic – which will stop it rotting and take decades to decompose.