I worked at burger king last yr. They are morning star burgers and are always cooked in the microwave. they are never cooked ahead of time. they have their own tongs (they're green). burger king guidelines make sure that no meat ever touches them. the indivdual employees i cannot speak for. though i am always reluctant to believe the stories about workers spitting in the food, when your back there and have 10 orders to make, and a manager standing over you, your not too worried if the customer was rude to the drive thru person. on being clean though i've seen some nasty practices, food picked up off the floor, hair in the onion rings ect.