Webstarbucks is the largest coffee chain in the world by some margin, and its success has been chalked down to many things. Jenna gottlieb speaks with automation. Webthe cornerstone of our ethical sourcing approach to buying coffee is coffee and farmer equity (c. a. f. e. ) practices, which was one of the coffee industry’s first set. Webstarbucks is opening friday a big new lair on capitol hill — a hybrid of a roastery and a cafe, where some of the world’s most exclusive beans will be roasted. Right now, they are.