Wendy's iced tea is made from solely black tea, nothing else. Just don't ask for no ice at Wendy's or you might get room-temperature tea filled halfway without ice to make up the difference.

Perhaps Wendy's keeps its buns in a plastic bread bag that traps moisture and prevents airflow. On the other hand, the mold in the iced tea could be a sign that the teapot used to brew the tea or ...