If you love coffee, especially strong coffee, you’ve probably come across Turkish brewed coffee at some point. Unfiltered and ground to an ultra-fine powder, Turkish coffee is strong, thick, sweet and gritty.
Normally the coffee is heated to just under a roiling boil, explains BrotherGantry on Reddit, but traditionally it was apparently done by putting the tin cups through very hot sand as a makeshift double boiler rather than the cezve pots used today.
He puts a pot of sand over a flame:
Then uses it to heat the coffee.
If you’re a coffee aficionado but the sand is a bit much for you, here is a recipe for a more straight-forward Turkish coffee.