Cooling gel ice packs help preserve freshness and safety during cold chain transport. They perform best when prepared and positioned correctly. It is important that packs are fully frozen before use; they should therefore be kept in a freezer for at least 12–24 hours. An insufficiently frozen pack cannot provide stable cooling throughout transport and may contribute to a cold chain break.
Placement is another important consideration. Where possible, distribute cooling gel packs evenly above and around the sides of the product, as well as underneath it. The aim is to achieve even cooling inside the box.
Direct contact with an ice pack may be unsuitable for certain sensitive products, so separating layers can be used where needed. Minimising empty space inside the box also helps retain cold air.
Transport duration and ambient temperature directly affect the number of packs required. Fewer packs may be sufficient for short-distance shipments, while longer journeys require a more substantial cooling plan.
The insulation quality of the box is just as important as the number of packs. Inadequate insulation can significantly reduce the performance of even high-quality cooling products.
Correct usage improves product safety and helps control costs. Reusable cooling gel ice packs can provide efficient results over repeated use when handled under suitable conditions. Especially in food and medical transport, a properly prepared and positioned cooling system helps preserve product quality from dispatch to the end user.
