What type of business does Mattie's family own in Fever 1793?

Mattie's family runs a coffee shop in Philadelphia, and Mattie lives above the shop with her widowed mother and grandmother. She's none too pleased about all the menial chores she has to carry out on a daily basis, but she's nothing if not ambitious, and she wants to turn this modest little enterprise into the finest business that Philadelphia has ever seen.
In those days, coffee shops weren't just places for drinking coffee; they were thriving social hubs where men—and virtually all the patrons of such establishments would be men—would gather together and discuss business and politics. In Philadelphia, which at that time was the capital city of the United States, coffee shops were regular meeting places for some of the nation's most powerful and important politicians.