Freeze Dried Apple Slice Freeze Dryer
Freeze Dried Apple Slice Freeze Dryer
Apple freeze drying technology is to firstly process the fresh apple. Then uses food freeze dryer to freeze it under low-temperature, and sublimates the solid-stated moisture in apple under the vacuum state. This is a newly developed technology to preserve food.

Comparing to the other drying method, for example direct drying, freeze drying has quite a lot obvious advantages. Firstly, the freeze dried apple slice will not change its volume and shape significantly, the material is in sponge-shaped, Secondly, under the vacuum and low-temp conditions, the easily oxidized substance in apple are protected from oxidizing. Thirdly, after freeze drying, the apple has lighter weight, lower amount of moisture, longer preservation term. Apart from that, the freeze dried apple can be preserved under room temperature, easy to be transported.
The process of freeze drying apple slices are quite easy: washing - peeling & removing the seed – cut into slices & protect the color of apple – freeze drying – packaging the freeze dried apple.
The detailed procedure is to prepare the apple first, then soak it in anti-oxidizing liquid like Vitamin C or Tea polyphenols, this prevents oxidation of fresh apple slice. Put apple slice into food trays then, place the food tray into drying chamber to freeze dryer.
Parameter:
Model | KFD-20 | KFD-30 | KFD-50 | KFD-100 |
Tray area(m²) | 20 | 30 | 50 | 100 |
Input capacity(kg/batch) | 200 | 300 | 500 | 1000 |
Min. cold trap temperature(℃) | <-45℃ | <-45℃ | <-45℃ | <-45℃ |
Vacuum degree(pa) | <10pa | <10pa | <10pa | <10pa |
Tray temp. | -35~+100℃ | -35~+100℃ | -35~+100℃ | -35~+100℃ |
Tray quantity | 18 | 18 | 28 | 36 |
Tray Size(mm) | 2200x600 | 3300x600 | 3300x600 | 5000x600 |
Cooling method | Water cooled | Water cooled | Water cooled | Water cooled |
Total power(kw) | 45 | 60 | 100 | 180 |
Total weight(kg) | 8000 | 11000 | 20000 | 40000 |
Pre-sale:
* As soon as we get your inquiry, we will always reply to your email on time and try our best to recommend you the most suitable freeze dryer. Detailed tech-info will also be provided for you.
* We can do sample test for customers.
After-sale:
* If possible, please do come to our factory and we will teach workers the whole process of freeze drying. The most appropriate time needed for freeze drying will be tested by us.
* We will keep in touch with you, to make sure every parts of the freeze dryer work well. One year warranty, free online service for abroad customers.








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