Equipment description:
Vacuum puffing technology, that is, differential pressure puffing, also known as air puffing, Explosion puffing drying, is mainly used for the production of puffed fruit and vegetable chips, and its products do not contain oil and any additives, avoiding the problems of high oil content and short storage period of vacuum fried fruit and vegetable chips. Moreover, vacuum low-temperature extruded products are rich in protein, amino acids, cellulose, vitamins and minerals and other nutrients, and belong to pure natural food. Vacuum bulking unit consists of: bulking tank device, vacuum pump, air compressor, large diameter valve, electric control cabinet,
Digital display temperature meter, pipe and control system and other parts.
The basic principle:
The vacuum bulking system is mainly composed of a pressure tank and a vacuum tank whose volume is 5-10 times larger than the pressure tank. After pretreatment, the raw fruit and vegetable materials are dried until the water content is 15%-25% (different fruits and vegetables require different water content). Then the fruits and vegetables are placed in the pressure tank, through heating and pressure, the internal water of the fruits and vegetables is suddenly vaporized and flash, and the fruit and vegetable cells are expanded to achieve the purpose of puffing.
Vacuum puffed food features:
1) Rich in nutrition: vacuum puffing retains most of the nutrients in the original fruits and vegetables due to the low processing temperature.
2) Compared with ordinary hot air drying, vacuum low-temperature puffing can produce a uniform and significant honeycomb structure, which is convenient for human digestion and absorption.
3) Rapid rehydration: Due to the honeycomb structure of vacuum low-temperature puffed food, it absorbs more water per unit time during rehydration and rehydration is rapid.
4) Long storage period: vacuum extruded products do not contain oil, so as to avoid the phenomenon of oil oxidation, while the water content of the product is less than 3%, so the product shelf life is longer.
Equipment Advantages
Fruit and vegetable puffing using variable temperature and pressure differential drying is a new vegetable drying technology that has emerged in recent years. It combines the advantages of hot air drying and vacuum drying while overcoming the disadvantages of vacuum low-temperature frying. Puffed fruit and vegetable slices produced using variable temperature and pressure differential puffing are a popular alternative to deep-fried fruit and vegetable chips and vacuum low-temperature fried fruit and vegetable chips. They are delicious, crispy, nutritious, easy to store, and portable, making them a popular fruit and vegetable snack.
This product is made from fresh fruits and vegetables. After pre-processing steps such as washing, peeling, core removal, slicing (or not slicing), and pre-drying, it is processed using variable temperature and pressure differential puffing equipment. The production process of dehydrated fruit and vegetable puffed slices, from low-temperature dehydration to puffing and forming, is a physical process, without any chemical changes or additives. Therefore, the dehydrated fruit and vegetable chips retain their original color and flavor, with a delicate texture and a lingering aroma.
Equipment Features
1. Fresh fruits and vegetables are dehydrated to a certain concentration at low temperature before puffing, without the addition of any additives. 2. The production process is purely physical and does not utilize any chemical methods.
3. This equipment produces no environmental pollution during production and features low investment, small footprint, and high returns.
4. The puffed products retain the original color, shape, and flavor of fruits and vegetables, offering a fragrant, sweet, crisp, and crunchy taste with a lingering flavor.
5. The puffing process is performed at low temperatures, preserving the nutritional content of the fruits and vegetables.
6. The puffed fruits and vegetables are easily digestible, easily absorbed, and rich in nutrients, ensuring long-term consumption without weight gain.
