Frozen or Chilled: Why the Requirements Are Fundamentally Different
"Keep it cold" hides two very different jobs. Frozen and chilled shipping have different targets, different tolerances and different failure modes, and packaging designed for one will not reliably do the other. Treating them as the same problem is where a lot of avoidable damage starts.
Different targets, different tolerances
Frozen shipping has to hold well below zero for the entire route. Chilled shipping has to stay in a narrow window above freezing, which means it can fail from being too cold as much as from being too warm. The safe zone is generous for one and a tightrope for the other, and a setup that ignores the difference walks the tightrope blind.
Coolant is not interchangeable
The amount, type and preparation of coolant differ between the two. Frozen loads need more cooling capacity and careful conditioning. Chilled loads need enough to hold the window without freezing the product against the coolant. Copying a frozen configuration onto a chilled shipment is one of the most common ways to damage otherwise fine goods.
The same insulation, a different specification
Our cellulose insulation serves both, but the specification around it changes. Coolant quantity, placement and expected hold time are set to the target temperature and the real route, not to a single default. The insulation is the constant; the design around it is what makes it frozen-ready or chilled-ready.
Tell us the target, not just "cold"
The most useful thing you can tell us is the exact temperature window and the real transit time. From there we design for frozen or chilled specifically, so the packaging matches the job instead of averaging across two jobs it was never meant to share.
Not sure your current setup fits your target window? Let us check it: https://www.supaso.eu/kontakt