Flower Freeze Dryer Reveals The Freeze-drying Process Of Roses

The flower freeze-drying machine of Ningbo Scientz Biotechnology CO., LTD freeze-dried rose. The bioactive active ingredient of the rose is extremely small, the shape is well preserved, the nutrients and active substances of the rose are maintained, the water content is low, and the sugar content is high. . The color is rosy, crystal clear, easy to transport and long-term storage.

A method for preparing a vacuum freeze-dried rose, the main feature of which is that the steps include:

1. Rose picking: use fresh roses picked within 24 hours, preserved in the shade, and the humidity is less than 50% relative humidity;

2. Vacuum freeze-drying: Put the rose into the freeze dryer and lay the material according to 10~20KG/M2, close the sealing door, open the vacuum pump switch and the freeze dryer switch, pump the vacuum to 15kPa~25kPa, and start the cooling at the same time. The cold trap temperature of the vacuum freeze dryer is reduced to -40 ° C ~ -65 ° C within 2 to 4 hours, and the holding time is 0.5 to 2 hours; the product is slowly heated by the heating system under the separator, and the product is supplied. The heat required for sublimation will raise the rose to 0-15 °C within 9 to 30 hours to dry the rose flower. The dried rose maintains the original bright color, which preserves its nutrients and health care to the utmost extent.

3. Weighing and packaging: Put the dried roses in a 5 liter to 10 liter bottle and store them. The relative humidity of the environment is less than 50%, the room temperature is below 25 °C, and it is stored in the dark; the weighing is filled into the packaging bag, and the vacuum nitrogen filling packaging machine vacuums and packages the packaging bag as a sales package;

4. Inspection and storage: The product is sampled for hygiene index test, moisture test and functional component test, and qualified products are stored in the warehouse.