The One will be able to be sold as milk for the first time, following a relaxation of EU labelling rules.

Robert Wiseman Dairies had been banned from calling The One a milk because its 1% fat level fell outside prescribed levels. But next January, a new drinking milk regulation comes into force allowing products with levels of fat that don't fall into the narrow bands for skimmed (less than 0.5% fat), semi-skimmed (from 1.5% to 1.8% fat) or whole milk (3.5% fat) to be sold as milk.

The move follows agreement on a mini reform package for the dairy sector, which also raised school milk aid by 12% to £12.64/100kg and cut intervention rates.

Meanwhile, an EU directive aimed at liberalising pack sizes for food could be postponed in the UK for a further five years. Dairy UK plans to ask Defra to opt for the maximum five-year phasing-in period for the rules to avoid confusing consumers.