Eutectics and insulation9 / 26

Reducing moisture loss is not the same as leaving water on petals. Manage airflow, packaging and condensation together.

Do not silently substitute a missing or different plate; match load, route and authorized approval in the record.

Silopi recorded 50.5 °C on 25 July 2025. ATP classes are defined at 30 °C outside air; at 50 degrees the heat entering a container nearly doubles, and the plate freezer reaches its limit too.

Do not assume contact is suitable; check the product pack, gel-pack instructions and validated packing configuration.

A plate with a worn label stays out of the container until its identity is confirmed. On GEBHARDT plates the cap colour and the embossing on the shell still show the melting point without the label.

Do not choose from air temperature alone. Trial the pack-out against waiting, sun-exposed handover, product recipe and packaging.

Compare plate count with the dispatch plan, product needs and plate identity; do not schedule unready or uncertain stock.

The person who will fit the plates takes them out and checks three things: closure colour, time in the freezer and the state of the plate. A wrong-regime plate can be spotted on the road but not corrected there.

Set coolant placement through a validated pack-out for cake size and packaging; do not assume one position suits every box.

Preparation starts before the product leaves the freezer: box, coolant, product order and final stop belong to one plan.

For frozen food the limit is -18 °C, and a short rise in distribution may not exceed 3 °C. Because the lid opens at every stop, the box is chosen for the final stop.

A bag is enough if the product stays at -18 °C, at most 3 °C above it, from the moment it leaves the freezer until it enters the recipient's freezer. The time that counts is the whole timeline, not the driving time.

Follow product requirements and a validated packout; check the container, coolant, layout and run record together.

A box's duration comes from what it was tested with: product, load, ambient conditions and coolant. The whole route has to fit inside the verified time.

A cold-chain box slows heat ingress during transport. It does not cool by itself; it becomes a system with the goods, the coolant and the route.

Dry ice sublimates at -78.5 °C and releases gas. We work out how much CO2 10 kg of dry ice produces in a closed cargo space, set it against the ADR limits, and show where a gel pack belongs.