Bubble Back Gel packs – These icepacks are commonly used in cold chain applications in the pharmaceutical industry. There are situations where the products or specimens that are closest to the gel pack receive more cold energy and thereby affect the integrity of the specimen/product. Sometimes the gel packs work so well that they may actually freeze the specimen. The bubbles on one side of the icepack act as an insulation barrier between the specimen and the icepack. The bubble back gel packs are nothing more than a layer of bubble wrap sealed against one of the sides of a gel packs. Since these gel packs come in direct contact with medications, it’s recommended that customers purchase only approved products that are made in ISO and HACCP-certified factories.Cryolux Manufacture both Food Grade icepacks that are ideal for Food transport and delivery and Medical Grade ice packs which are also widely used for transporting pathology samples and Medicines.