Inside a 40′ reefer: how we hold the cold chain

A reefer container is a refrigerator the size of a small apartment, and the cargo inside it does not forgive mistakes. Pharmaceuticals, fresh produce, and temperature-sensitive chemicals all live or die by a single number on a logger.

The set point is a promise

When a coordinator quotes a reefer lane, the set-point temperature stops being a preference and becomes a contractual promise. Every degree of drift is logged, time-stamped, and reviewed against the agreed tolerance.

• Pre-trip inspection before the box is ever loaded
• Continuous monitoring against the agreed set point
• An alert the moment a reading leaves tolerance

We treat a cold-chain shipment as a chain of custody, not a journey. Each link is signed for.

That discipline is why a 40-foot reefer leaving Alexandria arrives in Rotterdam carrying the same readings it departed with.