UK brewer Greene King has said it is "concerned" by pub chain JD Wetherspoon's decision to offer its beer at GBP0.99 per pint.

King expressed concern to just-drinks today (6 January), 24 hours after JD Wetherspoon put the brewer's IPA beer on offer at GBP0.99 (US$1.44). 

The move forms part of a range of discounts at Wetherspoon's 713 pubs and is set to run "indefinitely", according to the group.

A Greene King spokesperson said: "They didn't consult with us about this and we are not supporting or funding it.

"Brewers have no influence over what is charged to the pub customer. Pub chains set their own retail prices and it is illegal for us to interfere in retail pricing in any way."

The brewer, which also makes Old Speckled Hen and Abbot Ale, praised Wetherspoon for its staunch support of cask beer in recent years, helping to drive a resurgence in the sector.   

However, it added: "We are concerned by how low the price is."

Wetherspoon defended its offer, which comes as consumers feel the first pricks of recession. A group spokesperson told just-drinks yesterday that the promotion is "not a loss leader in any shape or form".

Health groups have expressed concern that the move contradicts government and industry campaigns to promote responsible drinking.