Storage rooms filled with ice appeared several thousand years ago. For Emperor Nero, servants prepared snow and ice on frozen ponds in the mountains. In the Dark Ages, Southern Europe for a long time did not even suspect that snow and ice could be useful in the economy. The famous traveler and merchant Marco Polo, after a long stay in China, wrote a book in which he described all the advantages of ice and snow.
Starting from the 18th century, containers of faience and porcelain were filled with bottles of wine, after which crushed ice was laid on top. A peculiar refrigerator was served directly to the table.
In Russia, glaciers were widely used, which were a log house dug into the ground. Stuffed with a lot of snow and ice, covered with a thick flooring, on top of which the earth was poured and turf laid, such a glacier allowed storing perishable foods for a long time.
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