Pilot freeze dryer mini freeze drying machine for research and testing

Product Overview

Description

Vacuum freeze drying technology is the most advanced technology for food dehydration processing at present. Compared with the common drying method, the freeze-dried food produced with this technology features long period of quality assurance, good re-hydration nature, good-looking color, good flavor, taste, shape and high content of nutritious components. The dried food basically remains unchanged in its volume and shape, it looks like sponge and has no shrinking. This kind drying technology can be widely used in process of vegetables, fruits, condiments, aquatic products, biological products, medicine, beverage and etc. 

 

1, Taste. fresh Freeze-dried foods, like frozen, retain virtually all their fresh-food taste and nutritional content. Freeze-drying removes the water, not the flavor.

 

2,Look fresh. Freeze-dried foods maintain their original shape and texture, unlike dehydrated foods, which shrink and shrivel due to high-temperature processing. Freeze-drying removes water under low temperatures which keeps intact the moisture channels and food fibers. Just add water, and in minutes every fresh food detail returns.

 

3,Weigh less than fresh. Freeze-dried foods have 98% of their water removed. This reduces the food's weight by about 90%. 

 

4,  Stay fresh. Freeze-dried foods can be stored at room temperature, without deterioration or spoilage. This is because freeze-drying and packaging remove both water and oxygen - the two primary causes of food deterioration.  

 

Decription of pilot freeze dryer:

 

1. A maximum ice build up to 6 millimeter resulting in a negligible temperature drop over the ice and a low energy consumption; 
2. Constant condenser temperature; 
3. High freeze drying capacity/m2 of tray surface;  

 

Dimension of heating plates                                                         300*330*8mm

Number of heating plates                                                              3

Free distance between heating plates                                        82mm

Heating type                                                                                     Double-sided radiation

Heating medium, max. temperature                                             130℃

Dimension of trays                                                                          300*330*35mm

Number of trays                                                                                2

Volume of pipe inserts for vapor trap                                           1.2L

Nominal H2O sublimation capacity                                              2kg/ batch 

Nominal working pressure                                                             20~133Pa

Time for pumping down                                                                  15min

Refrigeration capacity needed (-35℃evaporating)                    0.4kw

Install power                                                                                       4kw