Decide on returnable containers using actual trip, return, maintenance and route costs.

Cost items

ItemSource
Container and repairInvoice
WashingLabour record
Return freightFreight invoice
LossEvent record
AlternativeMatched-route invoice

Cost per completed trip. Divide pilot purchase, cleaning, repair and return costs by completed deliveries. Compare invoices for the same route and period.

Use containers returned, not trips merely expected.

Track the return loop

Track dispatch, return, damage and cleaning by container ID. Calculate losses from pilot counts and invoices, not an assumed rate.

Observe useful life

Log damage, repair and performance changes. Test thermal suitability separately; cost advantage is not proof of performance.

Pilot records

Container ID and each round trip

Washing, labour and freight costs

Damage, loss and repair invoices

Matched invoice for alternative packaging

Make the payback decision

Refresh the calculation with actual cost and deliveries. Qualify additional routes before applying pilot results there.