Aldi named the cheapest UK supermarket

Shoppers could save £20 on their weekly shop if they go to Aldi over Waitrose. Credit: PA

Aldi has been named the UK’s cheapest supermarket in March, coming out £20 cheaper than Waitrose but just 25p less expensive than Lidl.

A basket of 41 grocery items at Aldi cost £72.54 on average across the month, compared with £92.55 at Waitrose and £72.79 at Lidl, Which? Found.

Price comparison of a basket of 41 grocery items Credit: Which?

Daily items are considerably cheaper at Aldi, versus the more expensive Waitrose.

An 800g loaf of whole meal own brand bread costs 39p at the budget retailer while Waitrose's costs almost four times the price at £1.45.

Two litres of milk costs £1.75 at Aldi and £2 at the latter.

Which? comparted 137 items – the original 41 as well as another 96 including branded products such as Andrex toilet paper and Cathedral City cheese, and not including Aldi and Lidl, found Asda was the cheapest, costing £343.91.

Sainsbury’s was the next cheapest, costing £9.25 more.

Waitrose was £41.83 more expensive than Asda.

Price comparison of a basket of 137 grocery items Credit: Which?

Which? said the findings showed shoppers can make considerable savings on their groceries depending on where they buy their food.

It also said many of the major supermarkets had not done enough to support their customers during the cost of living crisis.

The watchdog said retailers should be helping customers by making sure affordable basic ranges were available in all branches, including smaller convenience stores.

It added the chain stores should improve unit pricing on all products to allow customers to easily work out the best value.

Which? Retail editor Ele Clark said: “We know people are suffering through the worst cost-of-living crisis in decades and the price of food and drink has skyrocketed no matter where you shop.

“However, our monthly supermarket analysis shows you could save £20 on a basket of everyday groceries at the cheapest supermarket compared to the priciest one.

“Supermarkets aren’t currently doing enough to help customers.

"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 pricing so people can easily work out which products offer the best value.”

Last month, the Office for National Statistics reported that UK inflation shot up unexpectedly to 10.4% in February as vegetable shortages pushed food prices to their highest rate in more than 45 years.

Want a quick and expert briefing on the biggest news stories? Listen to our latest podcasts to find out What You Need To Know