Freeze Dryers, commonly known as freeze dryers or lyophilization equipment, are devices used to dry a liquid substance (typically a solution or suspension) by freezing it and then evaporating the ice through sublimation. This process reduces the water content of the substance while preserving the structure of its chemical components.

The process of lyophilization begins with the freezing of the substance. Subsequently, under vacuum, the water evaporates at low temperatures and is removed from the frozen material. This allows the water to transition directly from a solid state to a gas, aiding in the preservation of the material's structure and reducing reactivity.

Freeze Dryers are crucial equipment used in pharmaceuticals, food, biotechnology, and other industries, especially in cases where delicate or heat-sensitive components need to be preserved.