Jeremy Tooker: Coffee Craftsman

These 40 up-and-comers—all 40 years old or younger—are changing the way Americans eat and drink, from a vodka distiller who rewrote Nebraska's Prohibition-era laws to a White House chef who's fiercely fighting to improve school-lunch programs.

Jeremy Tooker: Coffee Craftsman

Photo © Eric Wolfinger.

Coffee's rising star, Tooker, 31, launched Four Barrel in San Francisco in 2008 and quickly started supplying prestigious restaurants like New York City's Maialino. A co-founder of Ritual Coffee Roasters, Tooker left to open Four Barrel, known for impeccable roasting of seasonal single-farm-origin beans. He also has a business relationship with Stumptown Coffee Roaster's Duane Sorenson—who is under 40 himself but already anointing the next generation of leaders.

Plus Go to the Four Barrel Coffee website