February 16/Chicago/Associated Press Financial Wire -- Burger King is launching a new coffee line as it tries to boost its breakfast business. The nation's number-two burger chain says it will add Starbucks' Seattle's Best Coffee to all its U.S. restaurants beginning this summer.

The new brew replaces Burger King's BK Joe coffee, a first step in an effort to beef up its breakfast menu.

Terms of the deal were not disclosed. All of Burger King's roughly 7,000 U.S. restaurants will sell the coffee. The drinks include both hot and iced coffee. The iced drinks come with a choice of flavors.

The agreement is the latest expansion for Seattle's Best. Starbucks has focused on building the lesser-known brand it acquired in 2003.

From the March 1, 2010, Prepared Foods E-dition