Defrosting (or thawing) is the melting of an object or bringing a device's temperature above the freezing point to remove ice. A defrosting procedure is generally performed periodically on refrigerators and freezers to maintain their operating efficiency. Plasma Water Bath is widely used for the purpose of thawing fresh frozen plasma bags, in order to recover the cryoprecipitated antihemophilic factor. Rounded corners for better water circulation and uniformity. Formed in place PUF insulation improves temperature stability and energy efficiency.