Fresh-keeping technology of refrigerator

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If you’ve been shopping at the supermarket and looking forward to cooking for your family, only to open the fridge a few days later to find wilted vegetables, mottled fruit and spoiled meat, you’re probably right, is the waste of food painful and disappointing to family? Don’t worry, today take you understand refrigerator fresh-keeping black technology, easy to deal with fresh problems.

Ⅰ、Vacuum fresh-keeping technology

(1) principles of technology

Vacuum preservation technology is to put the food into a vacuum environment, pumping air, so that it is in an oxygen-free state. At this point, the respiration of food materials is greatly inhibited, metabolism almost stopped, microorganisms are difficult to survive and reproduce because of hypoxia, can be kept fresh for a long time.

(2) ingredients

Meat, fish, cut fruit and other easily oxidized deterioration of the food is the vacuum preservation of the“Best partner.”. Cut apples, for example, turn black quickly and taste worse under normal conditions. They can stay white and crisp for a long time after being sealed in a vacuum bag.

(3) method of operation

Operation, the market has a vacuum fresh-keeping machine with a vacuum bag or fresh box to choose from. Put the food ingredients into it and seal it with the air extracted by the vacuum fresh-keeping machine. If there is no professional equipment, manual air pump vacuum bag can also extend the freshness of food ingredients to a certain extent.

Ⅱ、Technology of controlling humidity and keeping fresh

(1) differences in humidity requirements

Different food materials have different requirements for humidity. Humidity control and preservation technology can accurately adjust the humidity in the refrigerator according to the characteristics of food materials and create a suitable environment.

(2) food ingredients suitable for high and low humidity areas

High humidity area: suitable for leafy green vegetables, fruits and other foods like moist environment. Here, the leaves are full and green, and the fruit is moist and juicy.

Low Wet area: it is suitable for dry food, such as medlar, jujube, mushrooms, tea and so on. Dry environment can effectively prevent dry moisture absorption, mildew deterioration, maintain color and flavor.

(3) key points for use

Now many refrigerators have partition moisture control function, can be placed according to the type of food ingredients. At the same time, to regularly check the refrigerator humidity, found abnormal can be adjusted through the humidity adjustment button. Also should avoid in the high humidity area and low humidity area placed not suitable ingredients, so as not to affect the preservation effect.

Ⅲ、Sterilizing and purifying technology

(1) technical necessity

The refrigerator food material is numerous, easy to breed the bacterium, produces the peculiar smell. Sterilization technology can effectively kill bacteria, eliminate odor, for food materials to create a clean and healthy storage environment.

(2) types of common technologies

The common technologies are ion sterilization and photocatalyst sterilization. Ion sterilization destroys the bacterial cell structure by releasing positive and negative ions; photocatalyst sterilization uses the strong oxidation generated by photocatalyst under light to decompose bacteria and odor molecules.

(3) daily preservation function

In the daily preservation, the technology can continue to play a role in reducing bacterial breeding, to prevent cross-contamination of food ingredients. For example, raw meat carries a large number of bacteria, easy to contaminate other ingredients directly into the refrigerator, with sterilization net taste function, can reduce this risk. When the refrigerator smell, it can quickly decompose odorous molecules, let the refrigerator restore fresh. Like the strong flavor of seafood or durian, turn on the function after the odor will gradually dissipate.

(4)maintenance methods

To maintain the effect, to regularly clean the refrigerator interior, remove food debris and stains, because dirt may breed bacteria, affect the bactericidal effect. At the same time, according to the requirements of the manual, replace the sterilization module regularly to ensure normal operation.

Ⅳ、Precise temperature control technology

(1) the importance of temperature to preservation

Temperature is a key factor affecting the preservation of food materials. Precise temperature control technology can control the temperature in the refrigerator within the range of the most suitable for the preservation of food materials and reduce the impact of temperature fluctuations on food materials. Excessive temperature fluctuations will lead to loss of moisture in food ingredients, nutrient destruction, accelerated deterioration.

(2) temperature setting in different areas

Cold Storage Room: the temperature is set in a low and suitable range, vegetables are suitable for relatively mild and low temperature, fruits vary from species to species, apples, pears, etc. are suitable for slightly low temperature, tropical fruits such as bananas and mangoes are suitable for relatively high temperatures.

Freezer: the temperature is usually set very low, can quickly freeze food, lock moisture and nutrition, meat can be long-term preservation, but pay attention to subpackage, avoid repeated thawing affect quality.

(3) Special Area function

Now a lot of refrigerators with zero fresh-keeping area, variable greenhouse and other special areas. The zero-temperature preservation area makes the ingredients close to the freezing point but not frozen, which is suitable for preserving seafood, meat and so on, and can maintain the fresh and tender taste to the greatest extent. The variable greenhouse can flexibly adjust the temperature to meet the diversified preservation needs.

(4) operation and regulation

When operating, according to the refrigerator instructions, through the temperature adjustment button or display to set the appropriate temperature. Adjust the temperature according to seasonal changes and food storage conditions appropriate adjustment, high ambient temperature in summer, can be appropriate to lower the temperature of the refrigerator; winter is the opposite.

Ⅴ、Intelligent Management Technology

(1) principles of technology

Intelligent management technology can sense the type, quantity and status of food ingredients in real time through built-in sensors and smart chips, and transmit the information to the mobile phone, like a close life housekeeper, providing food ingredient management services at any time.

(2) mobile APP function

Food ingredients management: through the mobile APP, you can easily check the refrigerator ingredients and shelf life, food ingredients will be timely reminder of expiry, to avoid waste.

Recipe recommendations: you can also recommend personalized recipes based on your eating habits and refrigerator ingredients, such as chicken, potatoes and carrots at home. The APP may recommend chicken stew with potatoes and carrots, along with details of the recipe and seasonings required.

Remote control: even if not at home, but also through the mobile phone remote control refrigerator temperature, mode, etc. . Want to thaw frozen food in advance before work, a key operation, home ingredients have been thawed, convenient cooking.

(3) method of use

To use the smart manager, make sure your fridge is connected, pair it with your phone according to the instructions, download the corresponding fridge manager APP from the App Store, and follow the instructions.

Conclusion

Master these refrigerator preservation black technology, can easily deal with the problem of food preservation, let the ingredients to keep the best condition, for the family to cook delicious healthy dishes, let the refrigerator become food preservation“Super God”!