An improved method and device are provided for evacuating gas from a gas tight envelope such as a bag of plastic film, enclosing one or more trays containing solid or granular material. The vacuum probe used in accordance with the invention to evacuate the envelope has one or more parallel grooves or apertures extending its length. The probe is inserted vertically into the envelope along the side of the tray and provides a vacuum, across the length of the probe to prevent blocking of the probe and ceasing evacuation of the gas.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of application Ser. No. 08/223,724 filed Apr. 6, 1994 now U.S. Pat. No. 5,491,957.
The temperature enclosed package, in one embodiment, has a reflector for surrounding the product, a frame with a cavity placed around the reflector, an insulating enclosure placed around the frame, and a diaphragm placed around the insulating enclosure. A vacuum is produced within the temperature controlled package.
