Freeze Drying Machine
The freeze drying machine is typically used to preserve food and making it convenient for transportation.
In this process the food is quickly frozen up to -40`C so that all the water molecules get frozen and then pressure is increased up to its triple point by placing it in a vacuum so that the ice crystals that formed while freezing process get transformed directly to the gaseous state and are vacuumed from the system and the product gets completely dehydrated . 98% of water gets removed by this process, because of no water, the product can be preserved for long time.