A pre-shipment inspection is a check on the finished lot before it leaves the seller’s control, made by the buyer or an appointed inspection company against the agreed specification. It usually covers quantity, packaging and marking, temperature, and a sampled assessment of the product itself.
Why it works this way
Once a frozen load has left, the cost of being wrong rises sharply. Rejecting at origin means the goods stay where they are; rejecting at destination means a temperature-controlled truck full of product nobody wants, at a border or at your gate, with demurrage running.
Inspection also settles the argument about condition at handover. If the goods were inspected and released at the point risk passed, later deterioration is a transport question rather than a quality question, and the temperature logger record decides it.
What follows in practice
Write the inspection into the contract, not into an email. Say who inspects, against what document, on what sampling plan, at whose cost, and what happens when the lot fails: replacement, rework, discount or cancellation.
Set a deadline that matches the loading plan, because an inspection right cannot be exercised on a truck that is already sealed. And keep the inspection separate from the incoming goods inspection at your own site, which serves a different purpose and a different clause.