Eli5: How did people make and keep ice in medieval times, and how do we manufacture ice cubes now ?
In: Technology
They didnt make ice in medieval times. Places that were close enough to some where that had ice naturally got ice blocks cut out from there and transported it home or bought it from some one that brought it to town.
Today you put water in a freezer and you have ice.
For mass production there are machines that make the process repeatable but its still putting water in a freezer.
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