Fill 3.5 oz. (100 g) of coffee powder into a jug. Then add 34 fl. oz. (1000 ml) of water. Stir well, cover and leave overnight (or for about 12 hours) at room temperature (or in the refrigerator, of course!).
Then stir the mixture well again, because the coffee grounds will have floated to the top.
Now you need another jug and a hand filter (by the way, the whole thing also works with a French Press, but I personally do not have one at home and therefore the version with the hand filter has been the cheaper option for me).Place the hand filter with additional coffee filter on the second pitcher and pour in the coffee mixture. It will not all go in at once. You'll have to be patient here and add new coffee mixture bit by bit, which will take some time.
When the coffee is through, you can enjoy it immediately. It's best served with ice cubes, and if you like, you can also add some milk or vegetable drink!