What is Freeze Dry Technology?
Freeze Dry Technology is a machine developed in the early 1900s. The first machine to perform the Freeze Dry process was derived from a chemical pump developed in 1905 by Benedict & Manning.
Since the 1930s, Freeze Dry Technology has been improved by pharmaceutical and biotechnology companies, and the first freeze-dried food, instant coffee, was first attempted in 1938 by Nestlé to solve Brazil's excess coffee stock issue.
Freeze drying is a preservation technique that involves sublimation, a process where the material goes through a phase change directly from solid (ice) to gas, bypassing the liquid state, and is known as Freeze Dry technology.
The sublimation method is a technique where a substance transitions from solid ice directly to vapor without going through the liquid phase, under low pressure and with slight temperature increase. This process allows drying without the need for high temperatures.
No damage occurs to the molecular and cellular structure of the products. The internal and external structure remains intact up to 90%, preserving the product in its fresh form.
Freeze Dry Technology Applications
- Chemistry and biochemistry
- Pharmaceuticals
- Cosmetics
- Food industries
- Less common applications
- Water-damaged books
- Documents and manuscripts
- Animal by-products
- Dairy yeasts
- Preservation of various archaeological finds
- Museum exhibit objects such as plants and animals
