GLOSSARY: Lyophiliser

Lyophiliser, also referred to as Freeze Dryer, is the equipment used to freeze dry the products. Freeze drying involves the removal of water or other solvents from a frozen product. Freeze dryers carry out three steps for this process - prefreezing, primary drying and finally secondary drying. Freeze drying has been used in a number of applications however it is most commonly used in the pharmaceutical industry, for example stabilization of living material such as microbial cultures, preservation of animal specimens and the concentration and recovery of reaction products.