Keystone College To Offer Servsafe Class Members News November 2, 2022 Keystone College will offer a ServSafe manager certification class on Monday, November 7 from 9 a.m.– 5 p.m. at 120 College Avenue, Factoryville.The training will cover topics involving food-borne illnesses and health risks that commercial food service establishments must learn in order to provide safe food for customers.