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July 2023: UK’s cheapest supermarket revealed.

Every month, we bring you the UK’s cheapest supermarket, according to consumer website Which?.  

Last month, we revealed the cheapest supermarket for June 2023 was Aldi for the 13th month running, while the cheapest supermarket when discount stores like Aldi and Lidl were excluded was Asda. 

This month we are back, bringing you the cheapest place to buy groceries in July 2023. 

And the winner is… 

Aldi! Aldi tops the cheapest supermarket list for the 14th month in a row.

Every month, the analysis by Which? compares the prices of a basket of 38 popular grocery items at eight of the UK’s biggest supermarkets. The results showed that the basket of 38 goods from Aldi cost £71.22, on average, across the month. Lidl wasn’t too far behind, with a price difference of £1.38 (£72.60). 

Waitrose was the most-expensive supermarket, coming in at an average of £87.24 over the month – or £16.02 more than Aldi. 

A large trolley of 135 items was also compared. These items consist of the original 38 products, plus 95 other items. This analysis excluded Aldi and Lidl however, as they do not sell the full range of items included – such as branded items. 

The cheapest trolley came from Morrisons, coming in at £341.92. Asda had been the cheapest traditional supermarket since January 2020, with Morrisons breaking the streak. Asda was the next cheapest, however, which cost just 22p more, or £342.14 for the trolley. Waitrose once again was the most expensive trolley – over £30 more than Morrisons (£376.66).

Once again, this analysis from Which? shows that considerable savings can be made by consumers, depending on where they tend to shop for food. Whilst more supermarkets are introducing discounts and value brands, more must be done to support consumers with rising food costs. 

Ele Clark, Which? Retail Editor, said: 

‘The price of food and drink has continued to soar as people suffer through the worst cost of living crisis in decades. It’s no surprise to see many people turning to discounters like Aldi and Lidl when our research shows they could save up to £17 on a basket of everyday groceries by doing so. 

‘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.’