5 kg mini sublimation dryer

The 5 kg mini sublimation dryer is a high-class food drying technology, suitable for products with high economic value. Sublimation dryer  (also known as freeze-drying) is a high-class food drying technology, the process is carried out in a drying environment of low temperature and pressure.

The 5 kg mini sublimation dryer uses vacuum and freezing to remove water – a common cause of food or pharmaceutical spoilage. After drying, the product structure is maintained, ensuring the nutrition and color of the product, improving the quality and value of the product.

The 10 kg mini sublimation dryer is a high-class food drying technology, suitable for products with high economic value. The process of sublimation drying for food is carried out through the steps from Raw materials -> Pre-treatment of raw materials -> Feeding materials into the machine -> Running the machine -> Freezing products -> Vacuuming -> Processing Heat -> Drying -> Recovery of dried product -> Defrosting the indoor unit -> Product packaging -> Storage.

What is sublimation drying?

Sublimation drying is the process of separating water from a product from a solid (freezing) to a vapor under conditions of low temperature and pressure, below the triple point of O (0.0098oC; 4.58mmHg), ie heat temperature below the crystallization point of moisture in the product (Tkt < 0oC, pressure below 4.58 mmHg). As a result, the product after drying almost retains the original natural quality of the raw materials: proteins are not denatured and hydrolysed, glucid is not gelatinized, lipids are not oxidized, vitamins and active ingredients The biological content is not destroyed, the color and taste are not changed, the fibers and minerals are preserved.

Advantages and disadvantages of 5 kg mini sublimation dryer

• The shape, color, nutrition, aroma, composition, and taste of ingredients have only changed slightly.
• The product is not contaminated, the amount of residual water is very little (1~3%), less bacteria, easy storage, convenient transportation at room temperature.
• The product structure is unchanged, easy to crush, easy to restore to its original state.
• Equipment is expensive, difficult to operate, difficult to operate at temperatures below -60 degrees Celsius, need a vacuum cleaner with high efficiency.

5 kg mini sublimation dryer with advanced food drying technology, the process is carried out in a drying environment of low temperature and pressure. After freezing, the product is put into a vacuum environment so that the water vapor changes from the solid state to the vapor state, the product structure is maintained, ensuring the nutritional composition and color of the product, improving the quality of the product. product quality and value.

Food drying process with 5 kg mini sublimation dryer

1/ Fresh food is quickly frozen at very low temperature (-30 to -50 degrees Celsius), then put into a vacuum chamber.

2/ In a vacuum drying environment, the ice crystals in the raw materials will sublimate without going through the liquefaction phase. About 90% of the moisture in the material is removed.

Then, through the secondary drying stage, to evaporate the residual moisture, the temperature is adjusted gradually (maybe > 0 degrees Celsius). The moisture content in the raw materials is about 1~4%.

3/ Sublimation-dried food is vacuum-packed, preventing moisture & oxidation.

4/ When food that is dried by a sublimation dryer is processed, soaked in water, it will return to its original state of flavor, nutritional content, structure and shape.

User manual for 5 kg mini sublimation dryer

Structure of 5 kg mini sublimation dryer

The mini sublimation dryer system consists of 4 main parts:

– Rapid freezing unit (usually this unit is separate from the system, it is frozen by a separate refrigeration system).

The sublimation chamber contains the dried product.

– Vacuum system.

– Automatic control system.

Contact for consultation about 5 kg mini sublimation dryer

SUNSAY Vietnam is always ready to advise and support on drying methods, ways to preserve food, fruits, agricultural products…
Get a quote Mini Sublimation Dryer 5 kg Please contact phone number, Zalo:  0935.995.035 or call center  +84 94.110.8888.