MinnEcon@work: The Coffee Guru

Nate Hrobak has gone from "slinging lattes" at an Uptown Minneapolis shop to one of four green coffee buyers for Caribou Coffee. Each day, Hrobak, 32, tastes and judges coffee the company buys and blends. Mornings are filled with roasting and analyzing samples in a kitchen just off Caribou's bean roasting room in Brooklyn Center.