Food prices suffered their biggest drop in over a year in June, according to the British Retail Consortium (BRC).

The Shop Price Index showed grocery prices to have fallen 0.8% in June compared with May, when prices decreased 0.2%. Compared with June 2015, however, prices were down 2%. Food prices have now fallen for 38 consecutive months.

Helen Dickinson, chief executive of the BRC, said: "The time it takes for any price increases to make a reappearance will depend on a combination of factors including the future value of the pound, commodity prices and any eventual impact of the Brexit vote on input costs.

The BRC said it expects prices to rise again in the future, but described it as "extraordinary run of deflation". Around 40% of all food consumed in the UK is imported from abroad. And with the value of the pound having fallen 14% since the night of the EU referendum, imports are expected to cost more in the near future, with the burden likely to fall on the consumer.