LONDON, Dec 6 Reuters British grocery inflation edged lower in November, a first decline in nearly two years, but remained near record highs, providing little relief for consumers ahead of the key Christmas trading period, industry data showed on Tuesday.

Market researcher Kantar said grocery inflation in the four weeks to Nov. 27 was 14.6, down 0.1 percentage points from October39;s record high, marking the first fall in 21 months.

Grocery inflation still has a long way to come down though, and based on the current rate, shoppers will have to spend an extra 60 pounds 73 in December to buy the same items as last year, Fraser McKevitt, Kantar39;s head of retail and consumer insight said.

The cost of a traditional Christmas dinner for four has hit 31 pounds, up 9.3 yearonyear, McKevitt said.

Prices are rising fastest in markets such as milk, dog food and butter, said Kantar.

It said grocery sales rose 5.9 yearonyear in the 12 weeks to Nov. 27, masking a drop in volumes once inflation is accounted for.

It highlighted more evidence of the coping strategies shoppers are adopting to mitigate rising costs, with ownlabel sales now up 11.7 yearonyear and sales of the cheapest value ownlabel lines up 46.3.

Also, Germanowned discounters Aldi and Lidl were yet again the fastest growing grocers with sales growth over the 12 weeks of 24.4 and 22.0 respectively, which also reflected the opening of new stores.

Morrisons and Waitrose were again the laggards, with sales declines…