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How to Choose a Good Espresso Maker Manual espresso makers differ from super-automatic machines which take care of everything. You need to grind the coffee beans, tap the beans and then pull each shot at the touch of a button. Some models come with a milk frother, which lets you make espresso and foamed milk at once. You should select the one that has between 9 and 15 bars of pressure. This is the best pressure for a great shot. Some machines have automatic pressure regulation. This is