Many consumers believe that cooling and keeping cold are the same thing. They are not, and the difference matters for every shipment.
Cooling
Cooling means lowering the temperature of a product that is warm or at room temperature. That is the job of a refrigerator or freezer.
Keeping cold
Keeping cold means preserving the temperature the product already has. That is the job of a gel pack.
What to do
Pre-chill your foods before packing, then use gel packs to keep that temperature stable. A warm product will use up a gel pack’s cold before the box even leaves your door.
