Our patented double micro-filters stop your coffee from extracting when your plunger is pressed. This creates a separation between the grinds and your brewed coffee. The liquid that’s trapped under the filter is sitting in with your coffee grinds, continuing to brew – so for this reason, we don’t recommend drinking it. To capture the last bit of liquid in your ESPRO press that’s trapped below the filter (once your press is emptied of brewed coffee): try lifting the plunger, tilting your press to pour out, and pressing the plunger carefully while pouring. This allows you to access the last bit of liquid.