1) Inadequate pressure for a proper brew can occur if the grind is too coarse, the amount of coffee is too little, or the grounds are not tamped sufficiently before brewing.
2) The amount of espresso extracted can vary depending on adjustments made to the grind size and amount, so reprogramming may be necessary when making changes.
3) The package dimensions are 14.2 centimeters in length, 33.8 centimeters in width, and 36.4 centimeters in height.