£742 warning issued to Sainsbury's shoppers 'with or without Nectar card'

Sainsbury's shoppers are losing as much as £14 per shop compared to Aldi customers. Which? found Sainsbury’s, with Nectar Card prices included, averaged £125.23 per month at the till, which works out at a weekly cost of £14.27 more at Sainsbury’s compared to Aldi.

Aldi has taken the crown for the UK's cheapest supermarket this month with a basket price of 62 items costing you only £111.66 on average. Fellow discounter Lidl took second place with its basket price sitting 41p more at ££112.07 on average with its loyalty scheme Lidl Plus.

Shoppers at Sainsbury's can save £742 by switching to the German supermarket. Without the Lidl Plus scheme, the basket would've cost you 67p more at £112.33 on average. Ocado was placed in second to last this month with an average basket price of £135.47. Which? said for a bigger shop consisting of a list of 164 items, Asda was the cheapest at £418.71 and Waitrose was the most expensive, costing £42.39 more at £461.10.

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Aldi and Lidl are not included in that comparison as they have a smaller range of products compared to the other supermarkets. Harry Rose, Editor of Which? magazine, said: "Our latest monthly analysis once again sees Aldi crowned as the UK’s cheapest supermarket. In the lead up to the festive season, people are looking to cut costs where they can.

"Our analysis shows that by switching supermarkets consumers could save 22%, highlighting the advantages of shopping around where possible." Which? explained: "Every day in October, we tracked the price of 62 branded and own-label groceries – including a Hovis loaf of bread, Birds Eye peas and pasta – at eight supermarkets to see how their prices compared.

"The table below shows how much our basket of groceries cost on average. Lidl, Morrisons, Sainsbury's and Tesco offered loyalty prices on some products, so we've calculated the average price for both members and non-members of their loyalty schemes."