A
laboratory freeze-drying machine
is a device that uses low temperature and vacuum conditions to freeze a water containing sample into an ice solid, and then converts the ice solid into water vapor through heating and reducing pressure, so as to evaporate the moisture in the sample and achieve the purpose of drying.
Advantages:
1. It can work at low temperatures, effectively avoiding the impact of high temperatures on the active components of the sample and preserving its activity.
2. Its drying effect is good, as the moisture in the sample is directly converted from ice solid to water vapor, which is better than traditional hot air drying.