How to Use an Espresso Machine

It is essential to know the basics of how an espresso machine works in order to make a wise investment in purchasing a machine to make delicious espresso at home. Otherwise, it is easily to wind up paying for an expensive machine with gadgets, which are not necessary to making a great shot of espresso. All espresso machines heat water to a high temperature and then use pressure to force the water through tightly packed finely ground beans. Thus, the essential components one should consider when choosing an espresso machine are the way in which the machine heats the water and generates pressure.

Choices in Heating Methods

• Boiler: A simpler boiler in an espresso machine heats the water to 250º F and then the water is cooled to the brewing temperature. Espresso machines using this type of heating method tend to be inconsistent in the temperature of espresso they produce.

• Heat Exchanger: Some espresso machines use a heat exchanger method of heating water. This heating method allows for some adjustment of the temperature of the water and it is possible to make shots of espresso and stem water at the same time. The downside of machines that use this method of heating is that the water will become too hot if the machine is left on for extended periods.

• Single Boiler: Espresso machines with a single boiler provide the user with the ability to control the temperature of the water heated to brew the coffee.  The most common thermostats used in single boiler espresso machines are vapor and electronic thermostat. A negative of this type of espresso machine is that it cannot make shots and steam milk at the same time.

• Double Boiler: These espresso machines provide the most accurate temperature control and it is possible to pull shots and espresso and steam milk simultaneously with these types of machines

Choice in Pressure Generation

• Rotary Method: These espresso machines can make several cups of espresso, although some people complain about vibration issues associated with these types of machines.

• Spring Lever: This type of espresso machine uses a pistol and cylinder to generate pressure.

• Vibratory Pump: Most espresso machines made for consumers to use to home utilize vibratory pumps.

In addition to the basics, consumers can find espresso machines with nice, but not essential features, such as automatic brewing and upscale styling. Other machines are especially designed to use pods of espresso, which provides the user the convenience of perfectly ground, measured and packed espresso beans.