Shop price inflation remained unchanged month-on-month in September, with the overall rate staying at 2.7%.
Non-food rate was slightly down at 1.3%, the BRC-Nielsen Shop Price Index showed.
BRC director-general Stephen Robertson said while the pressure on prices from commodities and other factors have not gone away, they have not got any worse and the inflation rate remains below the official measurement, the Consumer Prices Index.
He said:“The Bank of England expects CPI to go on rising but that’s due to things like utilities, petrol and insurance not shop prices.
“In fact some goods – clothing and electricals – continue to be cheaper than a year ago as retailers discount aggressively to produce sales and stay in business.
“Fundamental conditions are unlikely to change much this side of Christmas but next month we’ll see what effect the supermarket price war - based on straight price-cuts rather than other forms of promotion – is having on food inflation.”