Prepare a small jug of coffee
The device is also suitable for 2 cups. However you should dose more coffee.
Tip 1: two coffee filters slow down the run.
Tip 2: If you want up to 4 cups of coffee, remove the glass jug and put it back (after the water has run through). So the coffee has longer contact with the water. Attention, with more than 4 cups the filter holder overflows!