3. TCS food reheated for hot holding must reach which internal temperature? 155^circ F for 15 seconds 135^circ F for 15 seconds 145^circ F for 15 seconds 165^circ F for 15 seconds

The correct answer is $165^{\circ }F$ for 15 seconds.<br /><br />According to food safety guidelines, TCS (Time/Temperature Control for Safety) food that is reheated for hot holding must reach an internal temperature of $165^{\circ }F$ for 15 seconds. This ensures that any harmful bacteria present in the food are killed during the reheating process, making it safe for consumption.