Which? Names the UK’s Cheapest Supermarket of the Year

Aldi has been named the cheapest supermarket of the year by Which? – but the consumer group have also warned that prices are rising across all UK supermarkets.

Which? analysed thousands of grocery prices across the UK’s eight major grocery retailers during 2021 to find out how much each was charging an everyday shopping basket of items including apples, milk, Kenco coffee and PG Tips tea bags.

Aldi was found to be the cheapest supermarket for six months of the year, putting it ahead of its competitors. Hot on Aldi’s heels was Lidl, with the cheapest prices for five months of last year, including December, the busiest month of the year as shoppers stock up for Christmas.

In December, a basket of 22 items was cheapest at Lidl, coming in at £23.29, while the same basket of products was £23.64 at Aldi. However, at Waitrose, which was consistently the most expensive store throughout 2021, the same items cost £32.85.

Ele Clark, retail editor at Which?, said: “No one wants to overpay for basic groceries, especially when a cost-of-living crunch is putting extra pressure on household budgets.

“Our findings show that while prices are going up, some supermarkets are passing their rising costs on to shoppers more than others.”

But as the year progressed and the cost-of-living crisis kicked in, supermarket prices across the board have risen. Further analysis by Which? detailed how the price of a basket of everyday items went up over the course of 2021.

Sainsbury’s kept their price increase to a minimum – with a rise of just 0.59% between January and December while Tesco took second place with the cost of the same items going up by 0.89%.

The budget supermarkets inflicted some of the highest price increases, with prices at Aldi hiked up by 4.32% over the year and 5.13% at Lidl. Waitrose took the bottom spot again, with a whopping increase of 9.2% over the year.

Julie Ashfield, managing director of buying at Aldi, was delighted with the accolade, saying: “We’re absolutely thrilled to be named the cheapest supermarket of the year. We are committed to ensuring our customers have access to the highest quality products at the best possible prices.

“This is a commitment to our customers that is set in stone and we’re proud that it has been recognised by Which?, supporting shoppers at a time when the cost of living is rising.”