What is the best example of the definition of a storage box?

A walk-in cooler exemplifies the definition of a storage box as it is specifically designed for the purpose of storing large quantities of perishable goods at controlled temperatures. Walk-in coolers provide adequate space to organize items while ensuring proper ventilation and humidity levels, which are critical for food preservation.

In contrast, while a freezer used for preparations could be functional for storage, it is generally intended for active use in food preparation rather than long-term storage. A freezer opened multiple times a day suggests a usage pattern that might compromise temperature stability, making it less ideal for effective storage. Similarly, a display case for frozen goods is more focused on visibility and access for sales rather than serving as a dedicated storage solution. Therefore, the walk-in cooler stands out as the most complete example of a storage box in the context of refrigeration.