Abstract: A barrier system for an internal volume of a kitchen appliance, such as a commercial oven, is provided. The barrier system includes a door pivotably mounted to a housing of an appliance, the housing enclosing an internal volume as well as components associated with controlling an environment within the internal volume. The door is configured to selectively isolate the internal volume of the appliance when in a closed configuration, and to allow access to the internal volume when pivoted away from the closed configuration. The door includes a frame rigidly supporting an outer barrier and an inner barrier spacedly positioned thereon, wherein the outer barrier is rigidly mounted to the frame, and the inner barrier is rigidly mounted to the frame, but is configured to be removable from the door upon removal of a fastener.