Time the same tasks with each container; verify insulation separately from handling speed.
On a representative route, time loading, manoeuvring, handoff and empty return separately using the same load, stops and tasks. Trial with multiple users and record interruptions and handling issues. A stopwatch compares ergonomics and workflow, not temperature protection. Validate insulation separately through a shipment trial against product criteria.
A stopwatch can show how easily a container supports a task; it does not establish thermal suitability. Define route tasks to compare first.
With the same load, record start and finish for loading, aisle or threshold movement, handoff and empty return. Note user, interruptions and assistance needed.
Repeat with different users and review the median and causes of outlier delays. Run a separate sensor-based product and route trial for temperature performance.
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