What are the characteristics of freeze dryer?

1. Many heat-sensitive substances will not be derivatized or inactivated.

2. When drying at low temperature, some impurities in the substance are very small.

3. During the lyophilization process, the growth of microorganisms and the role of enzymes cannot be carried out, so the original properties can be maintained.

4. Because it is dried in a frozen state, the volume is almost unchanged, the original structure is maintained, and the concentration phenomenon does not occur.