Bird'S Nest Freeze Drying Machine

Bird's nest freeze drying machine

What are the production principles of freeze-dried bird's nest:

The popular instant freeze-dried bird's nest is made by Bird's nest freeze drying machine. The principle of freeze-drying the bird's nest is to carry out the bird's nest below 0 ℃, that is, it is carried out in the frozen state of the bird's nest. The temperature rises to above 0°C but generally does not exceed 40°C. Under vacuum conditions, when the water vapor directly sublimates, the bird's nest remains on the frozen ice shelf, forming a sponge-like loose porous structure, so freeze-dried The size of the bird's nest is almost unchanged after drying. If it is eaten, it can be restored to its desired shape by adding water again.

The advantages of a freeze-dried bird's nest are as follows:

1. At low temperatures, many thermal substances in a bird's nest will not be denatured and inactivated.

2. When dried at low temperature, it can be well preserved and stored, and natural volatilization can be minimized, so the shelf life will be longer.

3. During the freeze-drying process, the action of microorganisms and 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 desired structure is maintained, and the phenomenon of shrinkage will not occur.

5. Since the water in the material exists in the form of ice crystals after pre-freezing, the dissolved inorganic salts originally dissolved in the water are evenly distributed and the inorganic salts carried by it are precipitated on the surface, causing the phenomenon of surface hardening.

6. The dried substance is loose and porous, in the form of a sponge, dissolves rapidly and completely after adding water and restores its original shape almost immediately.

7. Since the drying is carried out under a vacuum with very little oxygen, some easily oxidized substances are protected.

8. Drying can remove more than 95%-99% of the water so that the dried bird's nest can be stored for a long time without deterioration.

9. Bird's nest is a traditional tonic. More than 80% of the world's bird's nest is produced in Indonesia and Malaysia, and only 30% of the real natural rainforest bird's nest on the market is because bird's nest is a primary agricultural product. Trouble, there are more food safety risks such as nitrite, the total number of colonized bacteria exceeding the standard, etc.

You need a Bird's nest freeze drying machine to get more valuable bird's nest.

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