Patent ID: 7444830

Claim:
A food storage unit comprising: an exterior wall forming an outer shell portion of the food storage unit; an interior wall offset from the exterior wall to define a space therebetween, the interior wall defining an interior portion of the food storage unit; a phase change material removably positioned in the space between the exterior wall and the interior wall; an evacuated region positioned between the exterior wall and the phase change material; a door rotatably movable between a closed position in which the door prevents access to the interior portion of the food storage unit and an open position in which the door provides access to the interior portion of the food storage unit; and a movable seal that overlays an edge portion of the phase change material and is at least partially compressed by the door when the door is in the closed position, wherein a first portion of the movable seal is fixedly attached to the food storage e unit proximate the exterior wall, and wherein a second portion of the movable seal is can be moved pivotally away from the edge portion of the phase change material to remove of the phase change material from the food storage unit.