Supermarket selling grocery nearly 20% more than others is most expensive for tenth week running

A supermarket which is selling a key essential for almost 20% more than nearly every other supermarket is the most expensive for the tenth week running.

We reported last month how Asda was called out over the price of its chicken breasts, as it's charging customers £2.65 for a 300g pack, which is 40p (or 18%) more than Tesco, Sainsbury's, Aldi and Lidl and 24p more than Morrisons.

But the supermarket is refusing to lower the price, which means it's spending the tenth consecutive week as the most expensive supermarket in our weekly comparison, which tracks the cost of eight essentials at the six main stores.

Read more: We tasted mince pies from every supermarket - this 21p one was star of the show

Asda's bill for the basket, which also contains bread, milk, butter, tea bags, coffee, beans and mince, comes in at £12.89, compared with the cheapest, Aldi, at £12.12.

Both Aldi and Morrisons have had a price increase in the last week though, both putting up the cost of their cheapest 500g packs of mince to £2.39 and £2.49 respectively.

Sainsbury's, Tesco and Asda were already selling it at the higher price of £2.49, with Lidl the only one charging less, at £2.29, and now working out second cheapest behind Aldi, with a bill of £12.23.

Morrisons has fallen to third place at £12.31, followed by Sainsbury's at £12.40 and Tesco at £12.43.

Despite working out as cheapest, Aldi has, for some time, disputed the findings of our comparison, saying that it doesn’t take into account like-for-like products or ‘the higher quality’ of its products.

For example, the supermarket says that its beans are 20g heavier than Sainsbury's and that Aldi tea bags are 'better quality than the comparative products used'.

Asda also disagrees with our