Workers at two Peet’s Coffee locations in Davis, California, are filing for a union this week, hoping to join a growing cafe labor organizing wave and to become the first of the company’s over 330 locations to unionize. As first reported by More Perfect Union, workers at the Peet’s locations say they have been organizing for five months with Workers United, a subsidiary of the Service Employees International Union (SEIU) that’s behind Starbucks workers’ union drive, which has unionized more than 250 stores over the last year. Workers are confident they will be successful, with union leaders at both stores…