Turn the power switch on the Caffe Treviso to "On." Open the filter cover and set the one- or two- -cup filter inside.
Fill the filter with one or two teaspoons of ground espresso in the filter, depending upon the desired amount. Press down lightly on the coffee to tamper.
Close the filter holder, pushing it to the right as far as possible. Set the cup or cups on the drip tray.
Fill the water reservoir with the desired amount of cold water.
Wait for the "OK" pilot light to illuminate and then press the "Delivery" switch. Wait for the coffee to brew into the cup(s).
Wait until the coffee maker has cooled before removing the filter to discard the used coffee grounds.
Steam milk for cappuccino by filling a small metal pitcher 1/3-full with cold milk. Turn on the machine and press the "Steam" switch. Wait three minutes, then slide the steam nozzle into the milk pitcher until submerged. Turn the steam control knob counterclockwise and raise and lower the milk to froth. Turn the steam knob off when finished and remove the pitcher. Use a cloth to unscrew the steam nozzle and rinse immediately to prevent milk residue from forming.