Firefighters from the town's station were scrambled to the KFC restaurant and drive through at Arlington Way, near the Harlescott Tesco, at 5.10pm on Monday.
When a fire crew arrived in response to an automatic fire alarm they found that it was caused by testing. It was recorded as a false alarm.
Shropshire Fire and Rescue's control centre received the incident stop message 16 minutes later, at 5.26pm.
