What is what machine is used to freeze dry candy?

A freeze dryer is typically used to freeze dry candy. Freeze drying, also known as lyophilization, is a process in which water is removed from a substance by freezing it and then creating a strong vacuum that causes the ice to vaporize without passing through a liquid state. This process preserves the texture, color, flavor, and nutritional content of the food while extending its shelf life.

Freeze dryers come in a variety of sizes, from small countertop units suitable for home use to large industrial-scale machines capable of processing large quantities of food. These machines consist of a freezing chamber, a vacuum pump, and heating elements. The candy is placed in the freezing chamber, where it is frozen at low temperatures. The pressure is then lowered, allowing the ice to sublime and be removed, leaving behind the freeze-dried candy.