My partner bought me a new aero press for my birthday. We have used a friends before. When we use it (first time and second) the water falls straight through (doesn't drip). Is it faulty? We have followed the instructions and video – my friends lets water pass slowly, this just falls through. Thank you for your help. – From Olwen D.

It is normal for a small amount of coffee to drip through prior to pressing. If you are experiencing an excessive amount of early drip through, you need to use a finer grind of coffee and to give the chamber a shake to level the bed of coffee. One way to confirm that the grind is the problem would be to brew using your friend’s ground coffee in your AeroPress.