How to store Xiaoqinglong in the refrigerator

Put the little green dragon on the refrigerated shelf of the refrigerator.

Human beings have understood from a long time ago that food stored at lower temperatures is less likely to spoil. As early as more than 2000 BC (20th century BC), ancient residents of the Euphrates and Tigris river basins in ancient Babylonia in West Asia began to pile ice in pits to refrigerate meat.

China also knew how to use ice to refrigerate and preserve food during the Shang Dynasty (early 17th century BC to 11th century BC). In the Middle Ages, primitive refrigerators that placed ice cubes in special water cabinets or stone cabinets to preserve food appeared in many countries. This type of refrigerator was still sold in the United States until the 1850s.

In the mid-17th century in the West, the word "refrigerator" entered the American language. As the city developed, the sale of ice also gradually developed. Gradually it was used by hotels, hotels, hospitals, and some discerning city merchants to preserve meat, fish, and butter. After the Civil War (1861-1865), ice was used to refrigerate freight cars and also entered civilian use. ?

By 1880, half of the refrigerators sold in New York, Philadelphia, and Baltimore, and one-third of the refrigerators sold in Boston and Chicago, were for home use. Similar products include freezers.