Vacuum Cooler for Vegetables and Fruits

Please contact us：zzd@mec.com.cn

Because of the increasing demand for fresh food, the drawbacks of traditional cooling methods are obviously revealed. After the products have been harvested and packed onto skids, how to reduce internal field temperature to ideal storage temperature very soon is a key step to maintain the freshness of fruits and vegetables. However, the deficiencies of traditional cooling methods include long processing time, poor temperature uniformity, mechanical damage on surface, limited throughput, etc and therefore they can not achieve rapid, uniform cooling preservation effect.

In contrast, Focusun vacuum cooling technology is different from conventional refrigeration equipment, it is a cool processing equipment, with fast, uniform and clean cooling advantages. The reduction in temperature via vacuum cooler is achieved by rapid evaporation of water when the atmospheric pressure inside the chamber is lowered by a vacuum pump. Generally, it takes only 30 minutes to reach the optimum storage temperature about 0 degrees.

Focusun vacuum coolers are excellent quality and own many models for various uses. Moreover, each machine can be customized to meet your requirements. Focusun vacuum cooler can significantly improve the cooling rate, reduce their own consumption of nutrients and keep original texture, color, sensory properties and nutrition of products, which can significantly increase the self life of products as well as reducing the health risk caused by organism growth. So till now, vacuum cooler has been widely used for cooling products in food and catering industry and also in the fresh produce and post harvest sector.

Features and benefits:

1. Rapid Cooling: typically 20 – 30 minutes to reach required refrigeration temperature.
2. Uniform Cooling: compared to traditional cooling methods, whose heat is transferred by convection on the outer surface and by conduction from surface to the center, vacuum cooler can achieve uniform cooling effect from inside to outside without the limit of the package.
3. Clean and sanitary: in vacuum circumstances, effectively sterilize the products, inhibit the micro-organisms proliferation, especially water borne microorganisms and also prevent the cross-contamination.
4. Thin-layer drying effect: unique effect to cure slight damage on surface and inhibit the expansion on fresh products.
5. Improvement of product quality and safety: maintain the original texture, color, sensory properties and therefore, prolong the storage and self life.
6. Easy to operate: PLC screen control, automatically stop the cooling process when the pressure and temperature reach the predetermined level.
7. High accuracy: equipped with imported digital display temperature and humidity controller, which can accurately control the vacuum level and humidity, ensuring excellent tolerability and operation of vacuum cooler.

The most rapid deterioration of your fresh produce or products takes place right after it has been harvested which is called internal field heat. Vacuum cooling machine is one of the most fast and therefore effective way to reduce the internal temperature of your product from field temperature to ideal storage temperature. However, research indicated that the average moisture loss is 1% for each 5 to 6 degree temperature drop, that means vacuum level is too high, resulting in excessive loss of moisture and frostbite of fruits and vegetables. Since produce is sold by weight, besides standard vacuum cooler, a hydro vacuum cooler is also designed and manufactured to meet specific requirements, such as to cool the products to ultra-low temperature. With an additional water circuit and control, hydro vacuum cooler can prevent the excessive removal of moisture and improve the cooling rate.

Application: leafy vegetables, radishes, lettuce, cucumber, mushroom, strawberry, watermelon, etc.

Features and benefits of Vacuum cooler:

1. High cooling rate: solve the internal field heat problem in 20-30 mins, inhibiting organism growth of their own.
2. Uniform cooling: cool down the temperature inside and outside the products in a consistent steady and uniform way.
3. Applicable to fruits and vegetables harvested on rainy days: it can quickly take away surplus moisture on their surface, achieving cooling effect.
4. Hydro vacuum cooler: designed with additional water circuit to meet the rapid cooling while to avoid excessive moisture loss.
5. Safe and stable: electric components are imported from famous suppliers to ensure safe working and long service life.

Specifications:

※ Focusun professional R&D team will design the specific vacuum cooler for your special requirements.

Tailor made options available:

1. Door :   A. Standard swing door   B. Horizontal sliding door
2. Condensing type:  A. Air cooling condenser  B. Water cooling condenser C. Evaporative cooling condenser
3. Refrigeration system:  A. Freon system (R404a)   B. Ammonia system
4. Chamber material:   A. Painted mild steel   B. Stainless steel
5. Additional options available:  A.. Hydro cooling system  B. Pulley loading system