The freeze-drier is a laboratory equipment used to carry out the freeze-drying process, which consists of extracting the moisture present in a given product by cold-drying. In other words, this laboratory device is responsible for dehydrating the samples by cold.

Lyophilization is a process that aims to separate water from a solution by freezing and subsequent sublimation of ice at reduced pressure. This technique is used to stabilize biological materials composed mainly of water, without altering their qualitative or quantitative composition, which can then be easily rehydrated.

Freeze-drying, also known as freeze-drying, is a sophisticated and advanced technique for preserving all kinds of substances, from biological products to chemicals, and plays a particularly dominant role in industrial laboratories. Freeze dryers, the equipment that carries out this process, effectively removes moisture from products, thus preserving their structure and integral composition.

The essence of the freeze-drying process lies in the fact that water sublimates directly from a solid phase (ice) to a gaseous phase, avoiding the liquid phase. This process allows efficient dehydration with minimal damage to the product. Thus, freeze dryers have become essential tools in several areas of industrial laboratories, including biotechnology, pharmaceuticals and food. 

t is essential to be careful and thorough when using a lyophilizer in a laboratory environment. The following are some useful recommendations:

Choose the Proper Freezing Technique: It is important to experiment and determine the optimal freezing technique for each type of sample. Each material has a preferred method that will best preserve its quality and stability.

Vacuum Pump Configuration: It is advisable to use a high capacity vacuum pump to ensure that all air and moisture are properly removed prior to the freeze drying process. This should be well maintained and checked regularly.

Avoid Sample Collapse: If the sample is heated too much during the drying process, it may collapse. The heating rate and final temperature should be carefully controlled to avoid this problem.