Final answer:
To cool food effectively, stirring is the recommended method, as it helps to evenly distribute temperature and enhance heat transfer from the food to the surrounding cooler environment.
Step-by-step explanation:
A great way to cool food is to stir the food. This method enhances the cooling process by increasing the food's exposure to cooler air or the surrounding cooler medium, and by promoting a uniform temperature throughout the food. An example of this method can be seen when making ice cream at home using a plastic bag with ice. By shaking the bag that contains the ice cream mixture, you are actually stirring it, which causes heat to transfer energy out of the ice cream and into the ice, cooling it down effectively during the phase change.