Espresso Machines - Which One is Right For Your Home?
The top espresso machines will be easy to use, clean, and produce balanced shots. But how do you decide which one is the perfect one for your home?
This Breville model, with its quick-heating thermocoil design, and digital convenience is perfect for anyone who doesn't wish to learn barista skills, but would like to enjoy great coffee at home.
Pump-driven
Pump-driven machines rely on an electric pump to generate the force needed to make espresso. They either take water directly from the mains, as is the norm in commercial installations, or have a reservoir which must be filled manually (common for espresso machines used in homes and smaller commercial espresso machines). machines espresso machines used are often solenoid-piston designs that can create high pressure. Certain espresso machines that are driven by pump systems have a fixed flow rate while others allow you to alter the pre-infusion pressure or brewing pressure.
These are the most sought-after machines and are ideal for anyone looking for a consistent, high-quality cup of coffee. These machines are easier to maintain and clean than other models, however they do require electrical power and space near an outlet.
There are two basic types of semi-automatics and super-automatics. Semi-automatics let you control how long the shot is pulled for with an electronic switch or a programable function. In addition, you are able to alter the grind setting or make sure that the coffee is tamper-proof. Certain semi-automatics are rotary while others are vibrating. Rotary pumps are quieter however, they require a constant flow of pressurized liquid.
A vibrating pump on the other hand, is able to start very 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 suits your lifestyle.
Pump-driven machines are available in a variety of sizes and price ranges. The most expensive machines are typically super-automatic and come with multiple boilers that separate the water for brewing and steaming. The heat exchangers on these machines can be set to different temperatures, which can result in some variations in the flavor of the espresso. This extra functionality is great for the busy barista working at home, but it can increase the cost of their products. Semi-automatics are a good middle option. They aren't expensive however they don't have the same level of consistency and versatility of other alternatives.
Steam-driven
Steam-driven machines employ simple mechanisms to create an intense espresso. Inside an airtight tank hot water is steamed to create pressure that is transferred into the coffee grounds to make espresso. This is similar to what happens inside a stovetop moka pot and they are being used for their value and small size. However, these machines don't have the capacity to achieve the 9 bar pressure needed for true espresso. These models are suitable for those just starting out with homebrewing, or who don't care about making the perfect espresso.
One of the earliest examples of a steam-driven device is the 1878 compensation siphon balancing machine developed by German engineer H. Eicke. The steam produced by this device pushes boiling water through a filter containing ground beans, which are then depressurized by heat of an open flame spirit burner. This process produces a powerful shot but does not meet the standards of consistency that a lot of espresso drinkers like.
Luigi Bezzera patented improvements in 1901 that led to the next breakthrough. His invention allowed him to lower the temperature in the boiler. This allows for a more constant temperature and pressure control. Bezzera also had an engine-driven device that helped to make this machine semi-automatic. The only issue was that the barista needed to grind, measure, and tamp beans manually.
This led to the development of a pump-driven espresso machine. Contrary to older steam-driven machines that were heated with an open flame, this type of machine is equipped with an electric pump that is capable of producing the pressure levels required to make espresso. These machines can accept water from a cold line which is a common feature in commercial facilities. They also have the option of using an additional water tank that must be filled manually.
They also come with two temperature settings that are controlled by one button. One of these buttons activates the brew thermostat, while the other switches on the steam thermostat. This kind of machine is more accurate than older steam-driven machines and can make consistent shots for a fraction of the cost of more expensive models.
Semi-automatic
For those who are seeking a simple method of making espresso with less effort The semi-automatic machine could be the answer. It eliminates barista training by automating the process of grinding, tamping and extraction to produce consistently good results. However, it doesn't complete the entire process for you: You still must grind the beans and then tamp them in the portafilter prior to the water is forced through them.
Many amateur and professional coffee-lovers prefer to use semi-automatic coffee makers because they enjoy being more involved in the process of brewing. They are also less costly than fully automated counterparts and are generally more reliable.
These types of espresso machines are commonly found in non-specialty coffee shops and at home of casual coffee lovers who are willing to spend more for convenience. They have dual boilers, which means that the brewing water and steam are kept separate while one is heating while the other is being used to create your beverage of choice. Some models even come with a built-in grinder that can be a big time-saver for the user.
The built-in espresso grinder is often limited in its settings, which can be a problem for those who want to modify the process of making their own espresso. It is recommended to combine a semi-automatic espresso machine with an external grinder to ensure total control over the size of the grinder.
If you're considering an espresso machine that is semi-automatic, ensure that you select one with a high-quality electric pump that is low-noise and has precise temperature control via the PID controller. PID is a piece of technology that's usually found in immersion circulators and high-end toaster ovens and helps stabilize a brewing boiler by measuring the temperature variations during the heating process.
A good semi-automatic espresso machine must also come with a steam wand powerful enough to create microfoam, and the ability to switch between steaming and brewing modes quickly (if it does not have dual boilers). With all of these options, a top-quality semi-automatic espresso maker could be an excellent choice for those who wish to save the time and money of learning how to make high-quality coffee but have fun experimenting with the process.
Manual
Manual espresso machines use levers to push pressurized water across a bed of finely ground coffee to produce highly concentrated shots. They are cheaper than semi-automatic or fully automated machines which is why they are popular with coffee enthusiasts.
Unlike automated espresso machines, which are designed with user-friendliness in mind manual espresso makers require more skill and focus from the operator to make the most of their potential. Making the right choice in a grinder, making sure that the brew ratio is correct and knowing how to dose and make sure your grounds are tamping properly are some of the things you'll need know prior to making use of a manual machine.
Although some may be able to find the process of learning in operating a manual machine frustrating, for those with the right set of skills, it can be worthwhile. Adrian Lini, CHOICE's expert barista says that if one has patience and the right equipment manual machines can make the best espresso.
In recent years, the hand-operated coffee machine has changed in its form and function. It now has more advanced features, including digital pressure gauges that allow users to monitor the pressure during extraction. Charles, who is employed at Flair Espresso, explains that these machines can also be used with bluetooth devices to digitally draw graphs of flow rate which can help users to understand how varying variables during extraction could affect the overall outcome.
There are two kinds of manual espresso machines: direct and spring-piston. Direct levers are equipped with springs in their group heads to boost pressure during making. While they are more expensive, they can be easier to use than spring-assisted machines.
Springs piston machines on the contrary, have nothing in their group heads, aside from the steam valve. They are simpler to use but don't offer the same degree of control over the making process. The best type of machine will come down to your preferences and your budget. Whatever you decide on, a manually operated espresso machine will require a few essentials such as a portable filter and a coffee mill and kettle.