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This is the method of completely removing water from a material whilst leaving the basic composition and structure of the material intact.

You may think this technology is only used to make astronauts food but it’s probably more widely used in the pharmaceutical industry to preserve other materials which would otherwise degrade pretty quickly when exposed to water or air.

Similarly freeze dryers can be required for other biological applications for scientists who wish to preserve samples for longer periods of time.

The basic idea of freeze-drying is to “lock in” the composition and structure of the material by drying it without applying the heat necessary for the evaporation process.

Instead, the freeze-drying process converts solid water — ice — directly into water vapour, skipping the liquid phase entirely.

Here at ACE Refrigeration, we have experience in both the installation and the service & maintenance of this specialist technology where clients include Aptuit Pharmaceutical Services.