FOOD PRESERVING SYSTEMS

摘要

A refrigeration system (10) for maintaining edible substances at a low temperature of the present invention includes a serving pan (12), an element (32) for retaining or holding the serving pan (12), and a refrigeration tube (28) and a glycol medium (22) surrounding the pan (12) is disclosed. The refrigeration tube (28) and glycol medium (22) act together in order to maintain the pan (12) at a low temperature for a prolonged period of time an d to provide an even cooling of the pan (12). In a second embodiment, the refrigeration tube (228) may be surrounded by the glycol medium (222). In a further embodiment, the system may be used to heat food rather than to cool food by using a heat pump alone or in combination with electric heating elements.