Has Sainsbury's "cured" the ham problem

Sainsbury's supermarket is launching a new “smart” label on packets of its own-brand ham in a bid to reduce waste by telling consumers how fresh it is. British households throw away 1.9 million slices of ham a day – equivalent to 32,500kg – at a cost of more than £170m a year.

The new label changes colour from yellow to purple the longer the pack has been open. Sainsbury’s says it hopes this will reduce the amount of perfectly good ham being thrown away. And would be extended to other foods if successful. The average British family throws away £700 of fresh food each year.

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