Milk is the third most wasted food and drink product in the UK, after potatoes and bread, with around 490 million pints tipped away every year, according to the recycling charity Wrap. From the end of January, the retailer will instead place "best before" dates on 90% of its own-brand milk and will encourage customers to use a sniff test to check quality. It also estimates 85 million pints of milk waste may be due to customers following "use by" labels despite research showing it can be used days after the date