Fast food boxed meal vacuum rapid cooling machine is a device used for rapid cooling and preservation, mainly for pre cooling and cooling of fast food boxed meals. Its working principle is to extend the shelf life of fast food boxed meals by placing them in a vacuum environment, reducing the ambient temperature and gas concentration.
Working principle and operating steps
1、 Principle
The principle of fast food box lunch vacuum rapid cooling machine is mainly based on the heat absorption effect of water molecule evaporation in a vacuum environment. In a vacuum state, due to the decrease in environmental pressure, the boiling point of water molecules also sharply decreases. Therefore, when cooked food containing water is placed inside a vacuum box, the water molecules inside and outside the food will quickly evaporate (vaporize) at lower temperatures and take away a large amount of heat. This process leads to a rapid decrease in food temperature, thereby achieving the effect of rapid cooling. Meanwhile, due to the entire process being carried out in a fully enclosed vacuum environment, bacterial contamination can be effectively avoided, achieving aseptic cooling.
2、 Operation steps
1. Put the fast food boxed meal into the vacuum chamber.
2. Close the vacuum chamber door, start the vacuum pump, and extract the air from the vacuum chamber to create a vacuum environment.
3. In a vacuum environment, the heat in a fast food box will quickly transfer to the surrounding environment, causing its temperature to drop.
4. When the temperature of the fast food box drops to the desired level, turn off the vacuum pump, open the vacuum chamber door, and remove the fast food box.
5. By processing with a vacuum rapid cooling machine, the temperature of fast food boxed meals can be quickly reduced, maintaining their original quality and taste, effectively extending their shelf life.
About price
The price of fast food boxed meal vacuum refrigeration machines varies depending on factors such as brand, model, and production capacity. On platforms such as Alibaba, it can be seen that the prices of vacuum refrigerators for fast food boxed meals provided by different suppliers vary greatly, ranging from several thousand yuan to several hundred thousand yuan. For example, the price of some small or economical devices may range from thousands to tens of thousands of yuan, while the price of large, high-performance, or specially customized devices may be as high as hundreds of thousands of yuan. Therefore, the specific price needs to be selected and negotiated based on actual demand and budget.
function
1. Rapid cooling: It can quickly lower high-temperature cooked food to the required temperature in a very short time, such as the normal temperature range (T ≤ 15 ℃) or lower, for subsequent packaging and storage.
2. Preservation and Quality Preservation: By rapid cooling, the growth and reproduction of harmful bacteria can be effectively suppressed, extending the shelf life of food. Meanwhile, a vacuum environment can also reduce the contact between food and oxygen, further slowing down the oxidation process and maintaining the freshness and taste of food.
3. Uniform cooling: In a vacuum state, water molecules inside and outside the food will quickly evaporate and absorb heat, thereby achieving uniform cooling from the inside to the outside. This avoids the phenomenon of external cooling and internal heating that may occur in traditional cooling methods.
4. PLC control system: using PLC programmable software, it can achieve automated operation. Modern fast food box vacuum refrigerators are usually equipped with automation control systems, which can accurately control parameters such as cooling temperature, time, and vacuum degree, improve cooling efficiency and product quality stability.
5. Wide application range: This type of equipment is widely used in various fast food restaurants, catering enterprises, food processing and other fields, and can be used for pre cooling and cooling various fast food boxed meals, improving shelf life and quality. At the same time, vacuum rapid cooling machines can also reduce energy consumption, lower operating costs, and have high economic benefits.
That's all for the brief introduction of the fast food boxed meal vacuum refrigerator. In summary, the vacuum rapid cooling machine for fast food boxed meals is an efficient, safe, and reliable food cooling device, widely used for rapid cooling and preservation of cooked foods such as fast food and boxed meals. When selecting and using, comprehensive consideration should be given to actual needs and budget.
XML
