The World's Largest Starbucks is opening Friday , as the coffee company prepares to open its largest store ever along downtown Chicago's famous Mag Mile. Chicago's Starbucks Reserve Roastery should open on November 15. According to the company, the four-story roastery will be a “fully sensorial coffee environment dedicated to roasting, brewing and packaging its rare, small-batch Starbucks Reserve coffees from around the world.” The interactive space will feature multiple brewing methods, a new menu of coffees and mixology and fresh baking on-site. And servers will pour much more than coffee. Starbucks has assembled three of Chicago's top bartenders to create exclusive cocktails, including one featuring the city's most infamous spirit: Jeppson's Malört. The setting allows bartenders to introduce tourists and downtown workers to new ingredients. Another Chicago exclusive involves pour over coffee. The presentation is meant to pique curiosity. Perhaps there's a tourist walking by that hasn't seen a barista pour over.