Espresso Machines - Which One is Right For Your Home?
The best espresso machines are simple to operate, simple to clean, and able to make powerful and balanced shots. But how do you decide which one is the perfect fit for your home?
This Breville model with its rapid-heating thermocoil design and digital convenience is perfect for anyone who doesn't have the time to learn barista skills but still wants to make great coffee at home.
Pump-driven
Pump-driven machines make use of an electric pump to supply the force required to prepare espresso. These machines either accept water directly from the mains, which is the norm in commercial installations, or they have a reservoir which must be manually filled (common for home espresso machines and smaller commercial espresso machine). Pumps are usually solenoid pistons, which can generate high pressure. Some espresso machines driven by pumps come with a fixed flow regulator while others let you adjust the pre-infusion and/or the brewing pressure.
commercial espresso machine Coffeee of machine, these are a great option for those looking to make quality coffee quickly and consistently. These machines are simpler to clean and maintain than other models, however they do require electrical power and a place near an outlet.
They come in two basic varieties: semi-automatic and super-automatic. Semi-automatics let you control the length of time that the shot is pulled by using an electronic switch or a programmable function. You can also adjust the grind setting and tamp down the coffee. Some semi-automatics have motors that are rotary, while others vibrate. Rotary pumps are quieter and more consistent but require a continuous flow of pressurized water.
A vibrating pump begins very quietly but it can soon sound like a scream when the machine has to be fed water. Both have pros and cons, and you should select the one that fits your lifestyle best.
Pump-driven machines also come in a variety of sizes and prices. The most expensive machines are typically super-automatic, and have multiple boilers that separate the water for brewing as well as steaming. The heat exchangers of these machines can be set to various temperatures, which allows for some variations in the flavor of the espresso. This feature is ideal for the busy barista working at home, but it can increase the price. The middle option is a semi-automatic which can be affordable but doesn't provide the same level of consistency and versatility as other alternatives.
Steam-driven
Steam-driven machines use a simple system to produce a powerful espresso. In a sealed airtight container hot water is heated to create pressure, which is then transferred to the coffee grounds. This is similar to the process used inside a stovetop Moka pot. These machines are in use today because of their cost-effectiveness and small size. However, these models do not have the ability to reach 9 bars of pressure required for authentic espresso. These models are best for those just starting out with home brewing or don't care about making the perfect espresso.
A very early example of a steam-driven device is the 1878 compensation siphon balancer developed by German engineer H. Eicke. The steam produced by this device is pushed through a filter of ground beans. It is then depressurized by the heat of an open flame spirit burner. This produces a robust shot, however it does not meet the standard of consistency that many coffee lovers prefer.
The next advancement came with Luigi Bezzera's 1901 patent improvements. The design of his invention allowed him to lower the temperature in the boiler. This allows for a more stable temperature and pressure control. Bezzera also had an engine-driven device that helped to make this machine semi-automatic. The only problem was the barista needed to grind, measure, and tamp beans manually.
This led to the creation of a pump-driven espresso machine. In contrast to the steam-driven machines of the past that were heated by an open flame, the new kind of machine has an electric pump that is capable of generating the high levels of pressure required for the brewing of espresso. The machines can take water directly from the cold water line which is common in commercial establishments or use an additional tank that is filled with water manually.
They also come with two temperature settings that can be controlled by the push of a button. One of these buttons switches on the temperature of the brew, while the other switch on the steam temperature. This kind of machine is able to provide consistent shots for a fraction of what it costs when compared to steam-driven models.
Semi-automatic
If you're seeking a simple way to brew espresso with less effort the semi-automatic machine is the solution. It eliminates the need for barista-level instruction by automating the grinding, extraction and tamping process to produce consistent results. But it doesn't complete the entire process for you. You'll have to grind the beans and then tamp them in the portafilter prior to the water is being pushed through them.
This is why many amateur and professional coffee lovers prefer semi-automatic machines, since they feel the satisfaction of being more in control during the brewing process. These machines also have less cost than their fully-automatic counterparts, and they are also known to be more reliable too.
These types of espresso machines are typically found in coffee shops that are not specialty and at home of casual coffee lovers who are willing to spend more money for convenience. They feature dual boilers so that the steam and brewing water are kept separate, while one is heating while the other is being used to make your drink of choice. Some models come with an integrated grinder which can save users a lot of time.
However the built-in grinder typically has a limited number of settings which can be a hassle for those interested in tinkering with the espresso-brewing process to create their own personal preferences. The best solution is to combine a semi-automatic espresso maker with an external grinder for complete control over the size of the grinder and the amount.
If you're interested in an espresso machine that is semi-automatic make sure you choose one with the lowest noise, a high-quality electric pump, and a PID temperature control that allows precise temperature regulation. PID controllers are typically used in high-end toasters and immersion circulators. It aids in stabilizing a brewing system by measuring temperature fluctuations during the heating process.
A decent semi-automatic espresso maker must also come with a steam wand powerful enough to create microfoam, and the ability to switch between brewing and steaming modes quickly (if it does not have two boilers). With all these features, a high-quality semi-automatic espresso maker can be an ideal choice for those who want to avoid the hassle and expense of learning how to make coffee of a high-quality, but have fun experimenting with the process.
Manual
Manual espresso machines operate with levers that push pressurized coffee grounds through a bed. This produces high-quality shots. These machines are traditionally less expensive than their semi-automatic or fully automated counterparts, making them popular with coffee enthusiasts who are discerning.
Manual espresso machines require more attention and skill from the operator in order to maximize their capabilities. Making the right choice in a grinder, ensuring that the brew ratio is in order, and understanding how to properly dose and tamp your grounds are just some of the things you'll need know prior to making use of a manual machine.
While some people find the process of learning a manual machine frustrating and difficult but those with the right skills can make it worth the effort. CHOICE's in-house expert barista, Adrian Lini, says that if you've got the right tools and the determination to learn how to operate a manual espresso machine, it will give you the best espresso experience.
In recent times, the hand-operated espresso machine has changed in its design and function. It now comes with more sophisticated features, like digital pressure gauges that allow users to monitor pressure during extraction. Charles, who works at Flair Espresso, explains that these machines can also be paired by Bluetooth devices to plot graphs of flow rate to help users to understand how varying variables during extraction can impact the final outcome.
There are two types of manual espresso machines: direct and spring piston. Direct levers have springs inside their group heads that helps to increase the pressure when making espresso. They're more expensive than spring-assisted machines however, they are still easier to operate.
Springs piston machines on the other hand, have nothing in their group heads except the steam valve. They're much more user-friendly than direct lever machines, but don't offer as much control over the brewing process. The right machine for you will be based on your budget and personal preferences. Whatever you choose a manual-operated espresso machine will require a few basic components such as the ability to carry a filter around and a coffee mill and a kettle.