Dunkin': Espresso and drip coffee coexist quite nicelyDunkin': Espresso and drip coffee coexist quite nicely

It seems Dunkin' has been able to launch an extensive espresso program without sacrificing speed or alienating its core customer base. About a year into the program, the company says those beverages make up about 10% of sales and are bringing in younger, female customers, a target audience for the brand. 

The espresso and drip offerings "coexist quite nicely," said Scott Murphy, Dunkin's COO, in an interview after the company’s third-quarter earnings call Thursday. 

Drip is "a great ritual for the morning guest," while "espresso flexes a little more in the afternoon," he said. "I think they can go together. In some cases, they're different consumers; in some cases, they're the same consumer."

During the third quarter, ended September 30, 20...