Request your FREE Dunkin’ Donuts Bakery Series Coffee Sample Pack! Receive free trial samples of their NEW Bakery Series® coffee flavors: Blueberry Pancake, Dulce de Leche Cookie, and Coconut Caramel. Offer valid August 23, 2017 through August 30, 2017, while supplies last. Offer open to individual residents of the 50 United Sates and D.C. only, ages 18 or older. Limit: one sample per person / email address / household.