Asda was back in first place this week with 10 cheapest items including the avocado (50p), Stilton (£1.40), quiche (£1.11), Total Greek yoghurt (£1.96) and cauliflower (50p).

Morrisons was some distance behind Asda despite big promos on Kingsmill bread (80p) and pineapples (£1).

Sainsbury’s offered the most promotions to move up a place, with particularly strong deals on cherry tomatoes (75p) and Wolf Blass chardonnay (£5.99).

Tesco’s basket of goods was £1.83 more expensive than it would have been last week, as the end of a promotion added £1.50 to the Wolf Blass chardonnay.

With only two promotions – and one of them (the pineapple) still the most expensive of all the retailers in our survey, at £2, the Waitrose basket was nearly £10 higher than Asda’s.

Corrections: In The Grocer 10 July, the price recorded for the Penguin biscuits and pears at Morrisons was incorrect. In the 17 July issue, the ham, Special K cereal and stewing steak at Morrisons was also incorrect, as was the price of Asda's brie and Sainsbury's bacon. As a result, Morrisons recorded the cheapest basket in both weeks, while Asda slipped to second place.

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Grocer 33: Tesco service makes up for out-of-stocks (24 July 2010)