In the Persian Empire, people would pour grape-juice concentrate over snow, in a bowl, and eat this as a treat. This was done primarily when the weather was hot, using snow saved in the cool-keeping underground chambers known as “yakhchal”, or taken from snowfall that remained at the top of mountains by the summer capital Ecbatana. In 400 BC, the Persians went further and invented a special chilled food, made of rose water and vermicelli, which was served to royalty during summers.[5] The ice was mixed with saffron, fruits, and various other flavours.

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