Any discussion of the history of refrigeration needs to mention the yakhchāl (~2400 years old) https://en.wikipedia.org/wiki/Yakhchāl https://en.wikipedia.org/

Any discussion of the history of refrigeration needs to mention the yakhchāl (~2400 years old) https://en.wikipedia.org/wiki/Yakhchāl https://en.wikipedia.org/wiki/Yakhchāl