The Invention of Refrigeration

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This chapter discusses the story and importance of refrigeration, highlighting the challenges of preserving food before its invention. It explores various methods used for food preservation, such as salt dehydration and ice harvesting, and mentions ancient practices like the Chinese ice collection department and Persian Yak-Chaw refrigerators.

Refrigeration is a method in which work is done to remove heat from one location to another. Refrigerators are machines, household appliances, which are used for such a purpose and are generally used to keep food fresh longer. They are relatively modern invention but people tried to keep food fresh by keeping it at lower temperatures for thousands of years. And The story gets hot even as it gets cold

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