Coffee Central will be closed for upgrades for nine weeks starting at 6 pm Dec. 16. The renovations will enhance efficiency by providing expanded retail space, an additional register, three bakery cases and updated equipment. Coffee Central is expected to reopen Feb. 17. During construction the newly upgraded Tea Leaves and Coffee Beans, adjacent to the Wang Lobby, will be open 24/7. The expanded menu will feature hot soups, paninis, sandwiches and pastries, as well as snacks and beverages. For more information, email MGHCoffeeCentralTeam@partners.org.