Milk Stork coolers are designed to maintain the refrigerated temperature of your breast milk while it is transit to its final destination. We recommend that you activate the cooling unit and then pack your refrigerated milk into the cooler all at once.
To maintain the internal temperature of the cooler once it is packed, please refrain from opening the cooler as much as possible.
It is perfectly safe to allow TSA to briefly open the cooler for inspection and will not compromise the integrity of the cooler. We do not recommend opening the cooler to add freshly expressed milk. If you need to store fresh milk, we recommend ordering the Cool Commuter.