In cross-docking, goods coming off the arriving vehicle do not enter the store; they are sorted and loaded straight onto the departing vehicle, which cuts stock cost and shortens delivery time. With a cold load the price is paid in the transfer area: in a conventional store the product waits in a cold room, here the waiting place can be an unrefrigerated area and unmeasured heat load builds up. The TİTCK Good Distribution Practice Guide (2022) asks for temperature monitoring at transit hubs and for temporary storage time to be kept to a minimum.
Three things set the risk:
- Appointments: arriving and departing vehicles sit in one plan; if the departing vehicle arrives an hour later, the goods spend that hour in the transfer area.
- Order: frozen goods come off last and go on first.
- Area: the transfer zone is kept cool and the vehicle body is sealed to the building; if cooling the whole area is expensive, only this zone is curtained off and cooled.
Scan pallet and lot ID at every step. Measure product temperature at the point and by the method the specification asks for; ambient or vehicle air does not stand in for product temperature. For frozen food the Codex code of practice asks that even the warmest package never exceeds -12 °C. Record planned and actual door times separately; the differences show the bottleneck.
If a result is off target, packaging is damaged or traceability is lost, set that load aside; record the event, the measurement point, the time and the action, and decide acceptance under the written procedure. Compare recurring delays by shift and door.
If the transfer time cannot be brought to zero, the product can carry its cold with it: in an insulated container with eutectic plates, a load waiting on the dock stays independent of the vehicle's cooling, and the GEBHARDT Isotec TBX holds the cold chain for up to 24 hours with eutectic plates.
