Aldi has been named the UK’s cheapest supermarket in May by Which?, as the consumer champion found shoppers could save more than £18 on a basket of items there compared to the most expensive store. It means Aldi has been the cheapest supermarket for 12 consecutive months.
The analysis, which involves comparing the average prices of a shop consisting of popular groceries at eight of the UK’s biggest supermarkets, is done on a monthly basis. The cheapest supermarket for May was Aldi, where a basket of goods cost £68.60 on average across the month.
Lidl placed behind Aldi with a difference of £1.91 (£70.51), widening the gap from last month, which was just a 65p difference. Aldi has remained the cheapest supermarket since May 2022. In comparison, Waitrose came out as the most expensive for the month, with a basket of goods totalling £86.91 - 23.5% more than Aldi.
