Waitrose is trialling removing plastic wrapping from multi-buy cans of vegetables - but still offering the same discounts.
Bosses say the multi-pack price will still be applied for loose tins once at the till.
The supermarket is trialling the scheme at 17 stores, following concerns from customers about single-use plastic.
The move will cut 18 tonnes of plastic waste a year and could be rolled-out if the trial proves successful.
The change affects Waitrose baked beans, plum tomatoes, chopped tomatoes in juice and sweetcorn.
Karen Graley, Packaging Manager, Waitrose & Partners, said: "We know shoppers like the convenience of buying a few cans at a time as store cupboard essentials but we want to remove single use plastic wherever we can.
"By selling the cans loose but at multibuy prices, we’ll be able to pass the cost saving on to customers - without passing on the plastic."
Earlier this year the supermarket announced it would trial allowing shoppers to buy things like fruit and vegetables without packaging