Semi-Automatic MachinesSemi-automatic espresso machines include an automated internal pump, automated temperature controls for the boiler, and activation switches, which engage and disengage the pump . You will need to turn on the pump and when the machine has dispensed the desired quantity of coffee, turn off the machine to stop the preparation. You will be responsible for grinding the coffee, packing it into the filter holder (group handle) and cleaning the used puck. Semi-automatic espresso machines are easier to use than manual machines. You have a lot of control over the brewing process to make high-quality espressos. There are affordable models from good quality brands available in the market, but some models can be very expensive. Semi-automatic espresso machine is more difficult to use than automatic and super automatic espresso machines.3. Automatic MachinesAutomatic espresso machines include a pump, automated boiler temperature controls and an automated preset water volume, which is selected at the press of a button. Most automatic espresso machines have controls that allow you to use them as a semi-automatic machine. You will still need to grind the coffee, tamp it into the portafilter and clean the used puck when using an automatic espresso.