Espresso Machines - Which One is Right For Your Home?
The best espresso machines are easy to use, clean, and produce balanced shots. But how do you determine which one is the right one for your home?
This Breville model with its rapid-heating thermocoil design and digital convenience is perfect for a person who doesn't want to develop barista skills but wants excellent coffee at home.
Pump-driven
Pump-driven machines utilize an electric pump to supply the necessary force to make espresso. These machines either accept water directly from the mains, as is the norm in commercial installations, or they have a reservoir which must be manually filled (common for espresso machines used in homes and smaller commercial espresso machine). The pumps used are often solenoid-piston types that can generate high levels of pressure. Certain espresso machines with pumps come with a fixed flow regulator, while others allow you to adjust the pre-infusion and/or brewing pressure.
These are the most popular machines and are ideal for anyone who wants a consistently high-quality, consistent cup of coffee. They are simpler to maintain and clean than other models, however they do require electrical power and a place 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 by using either a manual switch or a feature that can be programmed. You can also control the grind setting, and then tamp down the coffee. Some semi-automatics are rotary, while others are vibrating. Rotary pumps are quieter however they require a constant flow pressurized liquid.
A vibrating pump, on contrary, begins quite quietly. However, it may sound like a scream once water is added to the machine. Both types have their pros and cons and you should pick the one that fits your needs best.
Pump-driven machines come in a range of sizes and price ranges. The most expensive machines are typically super-automatic, and have multiple boilers that separate the water for brewing as well as steaming. They also have heat exchangers that can be set to different temperatures to allow for a variation in the flavor. This extra feature makes them a great option for the busy barista at home however, it can increase their price. The middle of the road is a semi-automatic which can be affordable but doesn't offer the same level of consistency and versatility as other alternatives.
Steam-driven
Steam-driven machines utilize a simple system to produce a powerful espresso. In a container that is airtight, hot water is heated in order to create pressure that is then transferred to the coffee grounds. This is similar to the process that takes place in a stovetop Moka pot. These machines are in use today because of their affordability and small size. However, these models don't have the capacity to achieve the 9 bar pressure needed for authentic espresso. These models are suitable for those just starting out with homebrewing, or who don't care about making the perfect espresso.
The earliest example of a steam-driven device is the compensatory siphon balancing machine in 1878 designed by German engineer H. Eicke. Steam is produced by this machine, which pushes boiling beans through filters. The water is then released by heating from an open flame. This process produces a very powerful shot, however it isn't up to the high standard of consistency that a lot of espresso enthusiasts like.
The next advancement came with Luigi Bezzera's 1901 patent improvements. His invention was able lower the temperature of the boiler, which allows for more consistent pressure and temperature control. Bezzera included a piston device to help make this machine semi-automatic. The only problem was the barista needed to grind and measure beans manually.
This led to the development of an espresso machine that is driven by a pump. This brand new espresso machine, unlike those older steam-driven machines, which were heated by an open flame, has an electric pump that is capable producing the high pressure levels required for the brewing of espresso. These machines can either accept water directly from the cold water line typical in commercial facilities or use a separate tank filled with water by hand.
The machines also have two temperature settings, which are controlled by one button. One of these buttons switch on the temperature of the brew 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 a fraction of the cost of more expensive models.
Semi-automatic
Semi-automatic machines are the ideal choice for those who want to make espresso quickly and efficiently. It can eliminate 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 have grind the beans, tamp them down in the portafilter and then push the water through.
This is the reason that many coffee drinkers choose a semi-automatic machine, as they like the feeling of being in control during the brewing process. They are also less expensive than fully automated counterparts and are generally more reliable.
These espresso machines are often located in shops that are not specialty shops and in the homes of casual coffee drinkers who are willing to pay more for convenience. They come with dual boilers to ensure that the steam and brewing water are separated while one is heating up while the other is being used to create the beverage you prefer. Some have even a built-in grinder that could be a major time-saver for the user.
The espresso grinder that comes with the machine is often restricted in its settings, which can be a problem for those who want to customize the process of making their own espresso. A better solution is to use a semi-automatic espresso machine with an external grinder to get complete control over the size of the grind and the amount.
If you're interested in an espresso machine that is semi-automatic make sure you choose one with a low-noise, high-quality electric pump, and a PID temperature control that can provide precise temperature control. The PID controller is a piece of technology that's typically used in immersion circulators and high-end toaster ovens. It helps stabilize a brewing boiler by monitoring the temperature changes throughout the heating process.
In addition, a good semi-automatic machine needs to have a sufficient steam wand that can create microfoam. It should also be capable of switching between brewing and steaming modes quickly (if it doesn't have dual boilers). A semi-automatic machine with all these features can be an excellent choice for those who don't want to learn how to make cafe-quality drinks however nonetheless want to play.
Manual
Manual espresso machines use levers to push pressurized water through a bed of finely ground coffee to produce extremely concentrated shots. These machines are traditionally less expensive than their semi-automatic or fully automated counterparts, which makes them popular with coffee enthusiasts who are discerning.
Contrary to automated espresso machines, designed with ease of use in mind, manual espresso makers require more knowledge and focus from the operator in order to make the most of their potential. You'll also have to select the right grinder and ensure that the brew ratio is correct.
While some might find the learning curve operating a machine manual frustrating however, for those with the right capabilities, it's well worth the effort. Adrian Lini, CHOICE's expert barista, says that if one has the patience and the right equipment, a manual machine will make the finest espresso.
In recent years, the hand-operated espresso machine has changed in its design and function. It now comes with more sophisticated features, such as digital pressure gauges, which allow users to monitor pressure during extraction. Charles, who works for Flair Espresso, says that these machines can be connected with Bluetooth devices to digitally create graphs of flow rates. This allows users to understand how the changing variables during extraction can affect the final result.
There are two main kinds of manual espresso machine s including spring piston and direct. Direct levers have a spring in their group heads, which helps increase pressure during the brewing process. They're more expensive than spring-assisted machines, however, they are still easier to use.
Springs piston machines are limited to the steam valve inside their group head. They're much more user-friendly than direct lever machines but don't offer as much control over the process of brewing. The best machine for you will be based on your budget and your personal preferences. Whichever you choose an espresso machine that is manual will need a few essential accessories, such as kettles, coffee grinder and a portafilter that has a removable metal dispersion screen.