Traditional Culture Encyclopedia - Traditional customs - How did the ancients store ice cubes?
How did the ancients store ice cubes?
1. Ice storage in winter is actually ice storage in winter and then stored in summer. The ancients would cut ice into pieces on the river and then float on the water to keep it frozen. When the thickness reaches one meter or more, people will transport the ice to the cellar dug in advance. The cellar is well insulated, and then put sawdust and other things in the middle of each ice block to avoid freezing together. The ice in the cellar is usually full, so that it can be used or sold in summer.
2. During the Tang and Song Dynasties, it was found that saltpeter would freeze when put into water, so the ancients could make ice. The chemical name of saltpeter is potassium nitrate. When it is dissolved in water, it will absorb heat and lower the temperature, so the water in the small basin will form ice.
Extended data:
In the Tang Dynasty, there was a "cool hall" in the palace that used natural water cooling to cool down. The temple was built by water, and mechanical transmission equipment similar to waterwheels was installed in the temple. Using the method of cold water circulation, the running water drives the fan wheel to rotate, and the fan wheel shakes to generate wind power, which transports cold air to the temple, forming the effect of "water-excited fan car, wind hunting skirt". At the same time, water pipes were installed on the four eaves of the palace to guide the water to the roof, and then the water was allowed to flow down along the eaves to form a water curtain, which circulated and stirred up chills.
In the Song Dynasty, not only the wind wheel was used to send cold water, but people also decorated all kinds of flowers on the reservoir and around the hall, with a fragrant smell.
In the Ming dynasty, the construction of "cool house" entered the homes of ordinary people. Nowadays, in the ancient houses of Ming and Qing dynasties preserved in Jiangsu, Zhejiang and Anhui, you can often see this kind of "earth air conditioning" for digging wells in the hall.
People's Daily Online-How did the ancients eat iced food without a refrigerator?
People's Network-The ancients poeticized the summer vacation.
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