What we have written on the cold chain81 / 154

The Communiqué does not ask for a continuous logger at every stage: where a recorder is required, where a visible thermometer is enough, and how short the logging interval must be to catch a door opening, with the numbers.

Product that still has ice crystals or stayed at 4 °C or below can be refrozen; product above 4 °C for more than 2 hours is discarded. For commercial quick-frozen food, the label rule and the -18 °C requirement apply as well.

Turkish food law sets a written room figure only for meat cutting rooms: 12 °C. In a hot kitchen the measure is how long the product waits on the bench and its own temperature.

The word on the label also sets the transport regime. The difference between chilled, frozen and quick-frozen decides the temperature limit of the shipping plan.

Lambda describes a material, U a panel of given thickness, K a whole transport body. Their units and sources differ, so one cannot stand in for another in a quote.

The catalogue litre figure is close to the inner dimensions; the space left for product appears only after plates, air gap and box size are taken off. The three figures compared on GEBHARDT TBX models.

A bag holds the product and any leakage; the insulated container and the cold source hold the cold. For a frozen load, choose the layers and the closure after partial unloading together.

A flask makes no heat or cold; it slows heat flow. Heat always moves from warm to cold, so the same barrier protects hot tea and iced water alike.

Do not treat a listing name as product identity. Match maker, model, internal dimensions, handling type and quoted accessories in writing.

Isotherm is a physics term. In transport, isothermal and insulated describe the same insulated body; what makes quotes comparable is the ATP K coefficient.

The dictionary form is "konteyner". The harder part of a quote request comes after spelling: the same word covers a sea container, a roll container and an insulated cold chain box.

In transport, ATP is the 1970 Geneva agreement that sets the temperature for perishable food and how the equipment carrying it is certified. It shares only its letters with adenosine triphosphate in biology.