Refrigerator preservation technology iteration history, your refrigerator is still in the first few generations?

2022-07-28

From 1910, the world's first compression refrigeration household refrigerator came out, to now the household refrigerator has more than one hundred years of development history. The core technology of refrigerators-the development of preservation technology, has gone through four iterations: the first generation: low temperature preservation. Only by low temperature preservation, the effect is more general. Second generation: wet and dry storage. Only suitable for humidity sensitive ingredients, limited types of ingredients. The third generation: oxygen control preservation. The ingredients must be removed from the fresh-keeping bag to be effective and easy to taste. The fourth generation: molecular preservation technology. Not limited by the type and state of ingredients, whether it is fruits and vegetables or meat, whether it is dry or wet goods, whether the ingredients are in the packaging bag or not, they can quickly act on the ingredients to achieve the purpose of long-term preservation.

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