Cold chain 101 for pharma exporters

Pharma cold chain is a chain in the literal sense — the temperature commitment made at the factory door has to survive reefer trucking, port handling, ocean or air transit, and last-mile delivery without a single break.

Reefer container bookings need the temperature range stated up front, not adjusted after loading — carriers set the unit once and monitor against that setpoint for the full journey. Building in the stipulation at booking time avoids a mid-transit dispute over who is responsible for a deviation.

Buyers increasingly want proof, not just a promise: temperature loggers, chain-of-custody documentation, and a deviation-response SOP that shows what happens if a reading drifts outside range. Having this ready before it is asked for is what actually earns repeat cold-chain business.