5 Machines Espresso Machines Lessons Learned From Professionals
Espresso Machines - Which One is Right For Your Home?
The top espresso machines will be simple to use, clean and produce balanced shots. How do you pick the best espresso machine for your home?
This Breville model is ideal for those who don't wish to learn barista techniques, but still want to enjoy great coffee at home.
Pump-driven
Pump-driven machines depend on an electric motor for the force required to make espresso. They typically accept water from a mains supply, common with commercial installations or a reservoir which is filled manually (common with smaller commercial espresso machines). Pumps are typically solenoid pistons, which can produce high pressure. Certain espresso machines that are driven by pump systems have fixed flow rates, while others allow you to alter the pre-infusion or brewing pressure.
The most well-known type of machine, these are a great choice for anyone who wants to make coffee of high quality quickly and consistently. They can also be easier to clean and maintain than other kinds of machines however, they require an amount of electrical power and a space near an outlet.
They are available in two basic types: semi-automatic and super-automatic. Semi-automatics let you control the amount of time the shot is pulled for with a manual switch or a programmed function. In addition, you are able to control the grind setting and tamp the coffee. Certain semi-automatics are rotary while others are vibrating. Rotary pumps are quieter and more reliable but require a continuous flow of pressurized water.
A vibrating pump, on other hand, is able to start quite quietly. However, it could make a loud noise once water is added to the machine. Both types have pros and cons and you must pick one that best suits your needs.
Pump-driven machines are also available in a variety of sizes and price. The most expensive machines are typically super-automatic, and include multiple boilers that separate the water for brewing as well as steaming. These models come with heat exchangers that can be set at different temperatures to allow for an array of flavors. This feature is ideal for the busy barista at home, but it will increase the cost of their products. The middle ground is a semi-automatic, which can be affordable but does not offer the same level of consistency and versatility as other options.
Steam-driven
Steam-driven machines employ a simple mechanism to produce an espresso that is strong. Inside an airtight tank hot water is steamed to create pressure which is transferred into the coffee grounds for brewing. This is similar to the process that takes place in a Moka stovetop. These machines are in use today due to their low cost and their compactness. However, these models aren't able to produce the 9 bars of pressure needed for true espresso. These models are suitable for those who are just beginning making espresso at home, or who don't care about making the perfect espresso.
A very early example of a steam-driven device is the compensatory siphon balancing machine in 1878 developed by German engineer H. Eicke. The steam generated by this device pushes boiling water through a filter containing ground beans, which is then depressurized with the help of heat from an open flame spirit burner. This process produces a powerful shot, but doesn't provide the quality of consistency that a lot of espresso enthusiasts prefer.
The next step forward was Luigi Bezzera's 1901 patent improvements. His invention was able lower the temperature of the boiler, which allowed for more constant pressure and temperature control. Bezzera added a piston device to help make the machine semi-automatic. The only problem was that it took the barista to grind, measure and tamp the beans manually.
This led to the development of a pump-driven espresso machine. This type of espresso machine, in contrast to the steam-driven models of the past, which were heated by an open flame, is equipped with an electric pump capable producing the high levels of pressure needed for brewing the espresso. These machines can either accept water directly from a cold water line, common in commercial installations or use an additional tank that is filled with water manually.
They also have two temperature settings that are controlled by a button. One of these buttons switches on the brew temperature, while the other switch on the steam temperature. This type of machine is more precise than older steam-driven machines, and can provide consistent shots at less than the cost of the more expensive models.
Semi-automatic

For those who are looking for a method of making espresso without a lot of hassle the semi-automatic machine is the solution. It eliminates barista training by automatizing the process of grinding, tamping, and extraction to ensure consistent results. It doesn't do all the work for you. You still need to grind the beans, tamp them down in the portafilter, then push the water through.
Many coffee lovers, both professional and amateur prefer semi-automatic coffee makers because they like the feeling of being more involved in the process of brewing. They are also less costly than fully automated counterparts and tend to be more reliable.
These espresso machines are typically found in coffee shops that are not specialty and at home of casual coffee drinkers who are willing to pay more money to enjoy convenience. Dual boilers allow steam and brewing process to be kept separate. One is used for heating while the other is used to make your preferred beverage. Some models even come with a built-in grinder, which can be a big time-saver for the user.
However the built-in grinder usually has a limited selection of settings, which can be frustrating for those who are more inclined to play around with the process of brewing espresso to create their own personal favorites. An alternative is to use a semi-automatic espresso machine with an external grinder to have full control over the grind size and the amount.
If you're interested in a semi-automatic espresso machine, make sure to look for one with a top-quality electric pump with low-noise, and precise temperature regulation through the PID controller. The PID is typically found in top-quality toasters and immersion circulators. It assists in stabilizing the brewing system by monitoring the temperature fluctuations throughout the heating cycle.
Additionally, a quality semi-automatic machine needs to be equipped with a strong enough steam wand that can create microfoam. It should also be capable of switching between brewing and steaming modes quickly (if it does not include dual boilers). With all these features, a quality semi-automatic espresso maker is a great option for those who want to avoid the hassle and expense of learning how to make cafe-quality drinks but still appreciate some flexibility with the process.
Manual
Manual espresso machines operate with levers that push coffee grounds pressurized through a bed. This produces extremely concentrated shots. They are cheaper than semi-automatic or fully automatic machines which is why they are popular with coffee drinkers.
Unlike automated espresso machines, designed with ease of use in mind, manual espresso makers require more skill and attention from the operator in order to make the most of their potential. Choosing the right grinder, making sure that the brew ratio is correct, and understanding how to dose and tamp your grounds are just some of the things you'll need be aware of before using a manual espresso machine.
While some might find the learning curve involved in operating a manual machine frustrating however, for those who have the right skills, it can be worth the effort. Adrian Lini, CHOICE's expert barista says that if you have the patience and the right tools, a manual machine will make the finest espresso.
In recent years, the hand-operated coffee machine has changed in its form and function. It now includes more sophisticated features, such as digital pressure gauges that allow users to monitor pressure during extraction. Charles who is employed by Flair Espresso, says that these machines can be used using Bluetooth devices to draw graphs of flow rate. This aids users in understanding how changing variables in extraction can affect the final result.
There are two types of manual espresso machine that are direct and spring-piston. Direct levers have springs in their group heads to increase pressure during making. While they are more expensive but they are also easier to use than spring-assisted machines.
Springs piston machines only have the steam valve within their group head. They are simpler to use however they do not provide as much control over the making process. The best machine for you will depend on your budget and personal taste. Whatever you decide on a manual espresso machine will require a few key components that include the ability to carry a filter around, a coffee mill, and a kettle.