Astronaut Neapolitan Ice Cream Sandwich
Enjoy your ice cream just as Astronauts do - the freeze-dried way! Freeze-drying removes water from the ice cream by lowering the air pressure to a point where ice shifts from a solid to a gas. The ice cream is placed in a vacuum chamber and frozen until the water crystallizes. The air pressure is lowered, creating a vacuum, forcing air out of the chamber; next heat is applied, vaporizing the ice; finally, a freezing coil traps the vaporized water. This process continues for hours, resulting in a perfect freeze-dried ice cream slice.