April saw £31.23 gap between cheapest and most expensive supermarket

Aldi has been named as the cheapest supermarket in April, according to Which? research. The consumer champion’s monthly analysis involves comparing the average prices of a shop consisting of popular groceries at eight of the UK’s biggest supermarkets.

The cheapest supermarket for a shopping list of 67 items was Aldi, where the groceries cost £112.90 on average across the month. Fellow discounter Lidl was just behind Aldi in April, costing £2.33 more (£115.23 on average).

Waitrose was the most expensive supermarket this month, totalling £144.13 - a difference of £31.23 compared to Aldi - 28 per cent more. The list of 67 items included a number of both branded and own-brand items, such as Birds Eye Garden Peas, Heinz baked beans, Hovis bread, milk and butter.

The analysis includes special offer prices but not multi-buys or two-tier loyalty prices, which are only available to loyalty scheme members. This latest pricing analysis from Which? demonstrates that shoppers can make considerable savings on their groceries depending on where they buy their food.

Ele Clark, Which? Retail Editor, said: “Our latest research shows that Aldi was the cheapest supermarket in April, with Lidl following closely behind once again.

“As food costs continue to weigh heavily on household finances, it's unsurprising many people are opting to shop at discounters to save money, especially as shoppers could stand to make significant savings.”

Full table of results for April (based on 67 items):