Final answer:
Hot TCS food can be displayed without temperature control for a maximum of four hours before it must be sold, served, or thrown out to prevent bacterial growth and ensure food safety.
Step-by-step explanation:
When holding Time and Temperature Control for Safety (TCS) food without temperature control, it's essential to adhere to the guidelines that prevent rapid bacterial growth, which normally occurs between about 4 and 60 degrees C (40 and 140 degrees F).
Foods that are held in this temperature danger zone for more than two hours are at risk for rapid bacterial multiplication, making them unsafe to eat. For hot TCS food displayed without temperature control, the limit is four hours. After this period, the food must be sold, served, or discarded to ensure safety.