LONDON — New product introductions and the February rollout of a breakfast program helped spur sales growth at Greggs P.L.C. in the 18 weeks ended May 8. The group, which has 1,400 outlets, said total sales rose 2.6% while like-for-like sales gained 0.6% in the 18 weeks.

“We have maintained our commitment to delivering the outstanding value and quality that Greggs’ food offers,” said Derek Netherton, chairman. “Our latest national TV advertising campaign, Greggs ‘The home of fresh baking,’ has been launched focusing on our shop staff making our sandwiches fresh by hand, every day, using bread we bake ourselves every day. Customer and staff feedback has been positive.

“We remain encouraged by sales from new products and have sold more than two million breakfasts to our customers since the national launch in February of our breakfast offer — bacon or sausage in a fresh, Greggs-baked roll.”

Mr. Netherton said Greggs remains on track to open a net 50 to 60 new shops and complete 120 refits this year.

“Our financial position remains strong, and we are well placed to deliver further growth in 2010,” he said.