Final answer:
The corrective action taken by the chef was to reheat the stew to 165'F (74 C).
Step-by-step explanation:
The corrective action taken by the chef was to reheat the stew to 165'F (74 C).
When the chef checked the temperature of the beef stew in the hot-holding unit and found it to be 120°F (49°C), which did not meet the operation's critical limit of 135'F (57 C), it meant that the stew was not being held at a safe temperature to prevent bacterial growth. Therefore, the chef recorded the temperature and took the corrective action of reheating the stew to a temperature of 165'F (74 C) to ensure that any bacteria present would be killed.