In the "Flow of Food," the transportation phase is just as critical as the storage phase. When moving cold TCS foods—such as raw meats, poultry, dairy products, or cut melons—from a central kitchen to a satellite site or from a supplier to a restaurant, the internal temperature must remain at$41^{\circ}F$ ($5^{\circ}C$) or lower. This standard is mandated by the FDA Food Code to prevent pathogenic bacteria from entering the "Danger Zone" ($41^{\circ}F$ to $135^{\circ}F$), where they can multiply rapidly.

To maintain this temperature during transport, managers must use insulated, food-grade containers that can maintain cold temperatures for the duration of the trip. These containers must be cleaned and sanitized regularly. Additionally, the delivery vehicle itself should ideally be refrigerated. Upon arrival, the receiving party must immediately check the internal temperature of the food using a calibrated thermometer. If the food has risen above $41^{\circ}F$, it may need to be rejected, especially if the time spent at the elevated temperature cannot be verified. This requirement ensures that the "cold chain" remains unbroken. Options B, C, and D represent temperatures either within the Danger Zone or relevant to hot-holding/cooking, which are unsafe for cold transport. Managing transportation temperatures is a key component of a Food Safety Management System, particularly for catering operations or large school districts.