Revealed: UK’s cheapest supermarkets

supermarket Full shopping cart
Shoppers could save £18 on a basket of items by going to Aldi rather than one of the more expensive supermarkets. Photo: Getty

Aldi has been named once again the cheapest supermarket in the UK, with shoppers at the discount retailer saving over £18 ($22.37) on a basket of items compared to the most expensive rival.

At Aldi, a basket of goods cost £68.60 on average across May, according to Which?. Lidl placed behind with a difference of £1.91 (£70.51), widening the gap from last month which was just a 65p difference.Waitrose came out as the most expensive this month, with a basket of goods totalling £86.91, that is 23.5% more than Aldi.

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Full table of basket results (based on 40 items):

















This marks the 12th month in a row that Aldi has crowned the cheapest supermarket.

Which? also compared the cost of a larger trolley of 131 items – the original 40, plus 91 more. These items included a larger number of branded items, such as Andrex toilet paper and Cathedral City cheese, and did not include discounter supermarkets Aldi and Lidl, as they do not stock some of these products.

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In May Asda was again the cheapest for this larger trolley of groceries, at £332.40 on average for this shop, beating the next cheapest, Morrisons (£334.47), by just £2.07.

Waitrose was £31.59 more expensive than Asda, coming in at £363.99, on average, for the trolley of comparable goods – 9.5% more.

Full table of trolley results (based on 131 items):














Ele Clark, Which? Retail Editor, said:“The Which? Food Inflation Tracker shows that the price of food and drink is continuing to soar, as people suffer through the worst cost of living crisis in decades. It’s no surprise to see many shoppers turning to discounters like Aldi and Lidl when our research shows they could make savings of more than £18 on a basket of everyday groceries.

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“Supermarkets aren’t currently doing enough to help shoppers. Which? believes the big retailers have a responsibility to ensure everyone has easy access to basic, affordable food ranges at a store near them, and to provide transparent and comparable pricing so people can easily work out which products offer the best value.”

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