What is freeze drying?

Freeze drying is a dehydration process which allows preservation of perishable products. By placing such material in a frozen state in the freeze dryer, under vacuum conditions, frozen water will sublimate from the solid phase to the gas phase.

Freeze drying at the BAT Unit

Location and contact

Instituto de Investigación en Ciencias de la Alimentación (CIAL)
c/ Nicolás Cabrera, 9
28049 Madrid

Bioanalytical and Preparative Techniques Laboratory (L4G)
Telephone: 91 0017900 (ext 805)
Responsible technician: Juan Antonio Rodriguez (

Functions of the service

The unit is responsible of two medium size and one small freeze dryers located in the Pilot Plant. It coordinates and executes the service for internal as well as external clients in collaboration with Novalindus.

The Unit ensures proper maintenance of all freeze dryers as well as authorization of new users of the small freeze dryer. The medium size ones are exclusively handled by the BAT staff.

Operating rules