Arrive on time. It's important that you are on-time for an interview. By doing so, you're showing that you are mindful and respectful of the interviewer's time. Arriving late can negatively impact your chances of landing the job, as it shows a sense of apathy and indifference.
There are two types of lever machines; manual piston and spring piston design. With the manual piston, the operator directly pushes the water through the grounds. In the spring piston design, the operator works to tension a spring, which then delivers the pressure for the espresso (usually 8 to 10 bar; 116 to 145 psi). Steam-driven A steam coffee machine
How to Drink Espresso. By itself, espresso is served in 'shots' with each shot measuring about 1 ounce. Double espressos are two shots (also called 'Doppios') and are more popular than single espressos. Regardless of the size, espressos are usually poured into a demitasse cups.