What is the main purpose of using a physical barrier while handling food?

The primary purpose of using a physical barrier while handling food is to prevent contamination. This involves creating a separation between food and potentially harmful elements such as bacteria, allergens, or other contaminants that can lead to foodborne illnesses. Physical barriers, such as gloves, utensils, or food covers, serve as a protective measure that helps maintain food safety by minimizing the risk of cross-contamination during food preparation or serving.

The other options do not directly relate to food safety in the same manner. For example, enhancing flavor is about improving the taste of food, which does not involve preventing contamination. Coordinating cooking times is important for ensuring dishes are ready to serve together but does not deal with the safety of the food itself. Facilitating serving relates to the presentation and distribution of food rather than its safety from contaminants.