Why the solution family splits into four
When building a cold chain, the routes in front of you gather under four headings: an insulated container with eutectic plates, a reefer vehicle, dry ice, and the single-use polystyrene box. The distinction is operational, not technical: which cost is paid once, which repeats every trip, and where the cold is produced. The answers to those three questions largely decide which route fits the work.
The four routes do not have to compete. Plenty of businesses run a reefer on the long leg and insulated containers for store delivery and the last metres; dry ice can also work alongside plates. The decision is not made once: it is revisited as volume changes.
Insulated container and eutectic plates: the passive arrangement
The plates freeze at the depot before the trip, go into the insulated container and, as they melt, draw heat and hold the load in its condition. Nothing runs on the vehicle; it stays standard, hired vehicles can be used, and fresh and frozen can travel in one trip in separate containers. GEBHARDT states that a properly configured Isotec system can hold the cold chain for up to 24 hours.
The price of the passive arrangement is discipline: a rack that freezes plates through to the core, pre-cooling of the container and lid habits. Without freezer capacity at the depot, or on a very long uninterrupted route, this route does not suffice alone.
The reefer vehicle: the active arrangement
The refrigeration unit sits on the vehicle and regenerates the cold throughout the journey. It is strong on long uninterrupted routes and full vehicle loads. The counterpart is investment and operation: the cost of the vehicle or body, the fuel share, unit maintenance and the turnover of a breakdown day. Where the capacity is used for only a small part of the year, those items do not pay back.
Dry ice: the cold source that runs out
Dry ice cools by sublimating at -78 °C and is spent every trip; it demands a steady supply and is not easy to find in every province. It serves at very low volumes, for sample shipments and as a deep-freeze booster. It can be used inside an insulated container; the container's dry-ice tray exists for exactly that.
The polystyrene box: the single-use route
This is the route with the lowest entry cost, and it serves for one-off shipments. At regular volume the arithmetic inverts: every parcel is bought anew, waste accumulates and the box cannot be shown in a hygiene record. Being the starting route in e-commerce does not make it the permanent one.
Where does each business start?
Businesses running store distribution, institutional kitchens and city rounds mostly start with the passive arrangement: stops are many, doors open often, and preserving the cold matters more than producing it. A business hauling full intercity loads keeps the reefer as its main tool. An e-commerce seller shipping single parcels starts with polystyrene and ice packs and moves to returnable containers once volume becomes regular. Samples and very low volumes are solved with dry ice.
The order of the decision does not change: first the product condition, then route time and stop count, then preparation capacity at the depot, and only last the cost table. The per-trip cost lines of the four routes are examined line by line on the comparison page in the guide.
Three common mistakes
First, taking the vehicle for the job: a cold chain does not mean a reefer, and many rounds run on standard vehicles. Second, taking the short frozen-food allowance for a regime: the tolerance covers transport and retail cabinets, not storage. Third, buying the equipment without building the discipline: an unprepared container and a half-frozen plate produce the same complaint whichever route is chosen.
Three facts settle the decision: the product condition, the route time and the target temperature. Send those three facts to Aris Makina and we will work out the right route or combination together. The equipment programme lives in the catalogue, and the selection criteria on the guide pages.
