Types of Vacuum Coolers

3 MT Portable System	3 MT System	18 MT double wide

All vacuum coolers are composed of a chamber to hold the produce with one or two doors to allow loading. The cross-section of the chamber can be round or rectangular. Larger units are built in the rectangular format to control width and ease transport. The length, pumps, and refrigeration systems are varied according the length and volume of product to be cooled in each cycle.

The refrigeration can be integrated with the unit on a common frame, or separated. It can also be powered by a multi-functional refrigeration system of the user, perhaps integrated into cold storage cooling equipment. Most units are built to be moveable on a seasonal basis.

Moisture-enhanced vacuum cooling

Water injection during the vacuum process can enhance cooling by replacing the need for internal moisture in the evaporative cooling process, thereby reducing moisture loss. Timely application can also prevent “vacuum infusion” of delicate leafy items, resulting in minimizing or eliminating “spotting” effects.

Water injection offers an opportunity to use sanitizing agents. This can be an important competitive advantage in meeting customer requirements for food safety, particularly in export markets.

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