The UK grocery market is performing well - with a sustained six per cent growth across the board over the 12 weeks ending on September 10, according to the latest TNS Worldpanel data.

Waitrose has achieved a record market share of 3.9 per cent.

Sainsbury’s has seen a growth rate of eight per cent for the second consecutive period.

Edward Garner, director of research at TNS Worldpanel, said: “If this continues the Sainsbury’s should see an even higher market share at Christmas - traditionally a strong trading period for this retailer.

“Morrisons is now firmly out of the doldrums with another period of real sales growth of four per cent, although this will have to increase above the current market growth of six per cent if we are to see its share increase from the current level of 11 per cent.”

But the recovery of Sainsbury’s and Morrisons has not prevented Tesco from adding another 1.3 share points year-on-year, according to the TNS report.

The growth was helped by the increased prices for fresh produce and bread.

But Kwik Save has all but disappeared, said Garner.

Aldi was the strongest performing discount retailer following store extensions and acquisitions, according to the TNS data.