We recommend basic cleaning the ice pack with a dry cloth after use to remove any moisture from condensation. For spillages or food residue, the ice packs can be hand-washed in warm water with detergent then rinsed in clean water. Make sure to dry off excess water on the outside of the Ice packs before placing them in the freezer, to avoid unnecessary frozen water droplets on the outside of the ice packs. This will also minimize condensation buildup in the storage compartment when using your cooler next time.