Working Principle
The vacuum pre cooling machine for baby bok choy is a machine used for pre cooling baby bok choy. Its working principle is to place baby bok choy in a vacuum chamber, extract air, and keep the vegetables in a vacuum state, thereby reducing their temperature and achieving the purpose of pre cooling. The advantage of a pre cooling machine is that it can effectively maintain the freshness and taste of vegetables, reducing the loss of vegetables during transportation and storage.
Features
1. Using vacuum pre cooling can effectively reduce the temperature of vegetables, maintain their freshness and taste.
2. Adopting a fully automatic control system, the operation is simple and convenient, and it can achieve 24-hour continuous production.
3. The pre cooling speed is fast, which can quickly lower the temperature of vegetables to the appropriate storage temperature.
4. Adopting a closed vacuum system can effectively prevent pollutants and bacteria from entering vegetables, ensuring the hygiene quality of vegetables.
5. The machine is made of stainless steel material, which is corrosion-resistant, easy to clean, and has a long service life.
Application Areas
The vacuum pre cooling machine for baby bok choy is mainly used for pre cooling and refrigeration treatment in industries such as vegetables, fruits, meat, and food, in order to extend the shelf life of products, improve product quality, and reduce losses. The specific application areas are as follows:
1. Vegetable industry: Vacuum pre cooling treatment of vegetables such as baby bok choy, Chinese cabbage, spinach, rapeseed, celery, spinach, cucumber, tomato, eggplant, potato, radish, etc.
3. Fruit industry: Vacuum pre cooling treatment of fruits such as apples, pears, oranges, grapes, bananas, mangoes, lemons, persimmons, etc.
4. Meat industry: Vacuum pre cooling treatment of meat such as beef, lamb, pork, chicken, duck, etc.
5. Food industry: vacuum pre cooling of bread, cake, moon cake, biscuits, noodles, Rice noodles, tofu and other foods.
6. Other industries: Vacuum pre cooling treatment in chemical, pharmaceutical, electronic and other industries.
Vacuum pre cooling machines for baby bok choy can play an important role in various industries, effectively improving product quality and shelf life, and bringing more economic and social benefits to enterprises.
The detailed steps of the vacuum precooling method for baby bok choy are as follows:
1. Preparation: Wash the baby bok choy, cut off the roots, put it in a basket, and prepare to put it in a vacuum pre cooling machine for pre cooling treatment.
2. Start the vacuum pump: Insert the power plug of the vacuum pre cooler into the power socket, press the start button, and start the vacuum pump.
3. Reduce air pressure: After the vacuum pump is started, the air pressure inside the precooler will gradually decrease, causing the air inside the precooler to be expelled.
4. Open the cooling water source: When the air pressure inside the precooler drops to an appropriate value, open the cooling water source and introduce the cooling water into the cooling water circuit of the precooler.
5. Control cooling water temperature: By adjusting the water temperature of the cooling water source, control the cooling water temperature inside the pre cooling machine to maintain it within a suitable temperature range.
6. Pre cooling time: Control the pre cooling time according to the quantity and size of the baby bok choy, usually 10-20 minutes.
7. Close the machine door: After the pre cooling time is reached, close the machine door of the vacuum pre cooler and stop the operation of the vacuum pump.
8. Take out baby bok choy: Take out the pre cooled baby bok choy, put it in a fresh-keeping bag or box, and refrigerate or freeze it.
In summary, by controlling factors such as vacuum pump, cooling water source, and pre cooling time, vacuum pre cooling treatment of baby bok choy can be effectively achieved, extending its shelf life.
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