Which of the following is a potentially hazardous food (PHF/TCS)?

Sliced melons are classified as potentially hazardous foods (PHF/TCS) because they provide an ideal environment for the growth of bacteria and other pathogens once they have been cut or sliced. When melons are intact, their skin protects the interior from contamination, and the risk of bacterial growth is minimized. However, once they are cut, the flesh is exposed, creating a situation where harmful microorganisms can enter and proliferate, especially if the slices are not handled or stored properly.

In contrast, the other items listed—such as unopened UHT coffee creamer, an uncut apple, and a loaf of bread—do not have the same level of risk associated with them. Unopened UHT coffee creamer is shelf-stable, meaning it does not require refrigeration and is less prone to support bacterial growth. An uncut apple has its skin intact, which serves as a protective barrier against contamination. A loaf of bread, while it can mold, does not present the same immediate risk of foodborne illness as cut fruits do.

Thus, the nature of sliced melons as a ready-to-eat food that can provide a conducive environment for bacterial growth justifies their classification as a potentially hazardous food.