Costa is offering customers 50 per cent off its products during January as the coffee chain celebrates its 50th anniversary.

The coffee chain is currently only open for takeaway purposes, but customers can still get half price off their bill on certain days throughout January.

The deal is only valid on food items - including sandwiches, salads, snacks and cakes - with drinks not included in the promotion.

The offer includes every single food item available at Costa.

The promotion is available every Monday, Tuesday and Wednesday throughout January, until Wednesday February 3

The deal is also automatically added, but some item prices may vary from store to store.

Customers can claim the offer via takeaway orders on the Costa Mobile Order app or in store through the Order at Table service.

However, the offer is not available for delivery orders or on Too Good To Go.