What conditions should a cold-chain promise cover?

Define a promise through product starting conditions, route duration and measurement records; avoid universal guarantees beyond the tested scope.

19 August 2026Updated 24 September 2026

Short answer

A measurable promise states the product’s prechilled starting condition, defined route and packout, documented time-temperature conditions, and operator acceptance at handover. Exclude untested conditions. Link lot, container, logger and receipt records in one file.

A cold-chain promise is unclear unless its scope and evidence are stated.

Three measurable parts

Explain which product travels under which route and packout, and how time-temperature records are assessed.

Promise	Question to ask
Shipped under cold chain	Which product start and route?
Cooling source included	How were preparation and placement verified?
Thermal container used	Which model and load arrangement?

Seller: define the scope

Test with the actual product, container, cooling source and route. Limit the promise to conditions demonstrated.

Receiver: record handover. Log receipt time, product and pack condition, relevant readings and accepting operator. Preserve records and escalate deviations.