Julie Jargon's interview with Green Mountain Coffee's CEO Larry Blanford. Green Mountain has grown rapidly after it acquired the Keurig brand of single serve coffee makers in 2006. He says K-Cups and single serve coffee is popular because of the broad choice it offers users to have different types of coffee during different times of the day without having to open three or four different bags of coffe that would go stale. On the threat posed by Starbucks single serve coffee machines to be introduced in fall 2012, Blanford says it is basically a espresso single-serve system and does not compete directly with the filtered coffee products from Green Mountain. Espresso is a small part of the U.S. coffee business. He sees growth moderating to 15-20% from the 70% in recent years.