Moulded from a 3D print. 
The design is translated in a computer drawing and then printed trhrough Laser sintering technique in a 3D model. From this model the moulds are made.
The shape of Xpresso is derived from old dutch handmade cups that were shaped round at the bottem and triangular at the rim, allowing good stirring and drinking. The design of the ear and saucer are dirived from industrial details in metal.
The shape allows efficient spacesaving stacking on top of an espresso machine because of the triangular shape of the cups.