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What to Look For in a Barista Espresso Machine The espresso machine is one of the most complex coffee machines on the planet. It is made up of three main parts. The bottom holds the water while the middle is a basin for filtration with a filter made of metal. This machine was a huge success and helped to popularize the prosumer (home barista) espresso market. Its features include a low pressure pre-infusion, an 2.2L boiler, and brewing pressure of 9 bar. Pressure If you're serious about coffee and espresso, then you're aware that the pressure of your espresso maker is an important aspect in how your drinks turn out. The pressure of your machine is essential for making great coffee, whether you're seeking a thick layer or a perfect balance of flavor and acidity. BARs (Barometric pressure) is the force your espresso machine exerts upon the coffee grounds while delivering high-pressure water. 9 BARs mean that your espresso machine is pushing heated water through the ground coffee at a 9 times the Earth's current atmospheric pressure. The pressure of your machine is essential because it allows water to pass through the coffee grounds at a proper speed and intensity. If the pressure is too low, the dissolved oils and flavors will not be extracted properly. If the pressure is too low, the dissolved flavors and oils will not be extracted correctly. You can control the pressure of your espresso maker by adjusting the screw of the espresso maker. Commercial machines and top-end home machines have pumps that rotate with adjustable pressure. For the cheaper home machines that have the pump that vibrates, adjusting the pressure isn't possible without engaging in DIY hacks. Companies like Cafflano, however, are developing technology that uses Pascal's Principle in order to maintain pressure within the portafilter throughout the making process. Temperature Temperature is one of the most crucial factors in the perfect espresso shot. Hot water can cause burning of the grounds of coffee, which can result in bitter coffee. The ideal temperature for extraction is 200 degrees Fahrenheit which allows the water to extract all the desirable coffee flavors without scalding the grounds or over-extracting. The top espresso machines include a thermoblock that is used to heat the water and keep it at a constant temperature throughout the entire extraction cycle. The Breville Barista Express, for example, has a PID (Proportional Integral Derivative) system which constantly monitors the water temperature and adjusts if needed making sure that the brew head remains at the perfect temperature to extract the coffee. Many coffee drinkers know that the temperature of your espresso machine is an essential element in brewing a great cup of coffee. The ideal temperature for espresso is between Fahrenheit 190 and 196. In order to achieve this, your espresso machine must have a good thermoblock or thermocoil and the boiler must be properly sized. In addition, it's important to preheat your espresso maker, portafilter and the cup prior to making the shot. Inability to heat your equipment is among the most common mistakes that can be committed by novice espresso makers. It is advisable to read your espresso machine's instruction manual before you use it for the first time. Grind A barista espresso machine should also offer a variety of grind settings to give you the best control over your final cup of coffee. Some machines have an analog pressure gauge, that is stylish and can help you gain knowledge about your brewing abilities. You should aim to maintain an average pressure of nine bars throughout the brewing process. This machine is near reaching that goal. A built-in grinder is another good feature. This is a great feature for newbies to espresso as it will not require you to purchase an additional burr grinder. The stainless steel conical grinder comes with 18 settings that range from “coarse to fine.” It's not as powerful as a stand-alone unit, but it's a solid start and will have you on your way to creating quality espresso shots. It's easy to clean and you can stop the grinder in the grinding process to avoid creating a mountainous amount of ground on your portafilter as it is being put through the tamper. This gorgeous and practical machine lets you be a barista at your home. It's an excellent choice for anyone who would like to be able to revisit the fond memories of pouring microfoam into your morning cup of coffee by locking a portafilter to the grouphead, and tamping with precision. For those who just want convenience, a bean to cup machine could be a better option. Water Water can be a challenging thing to master. Finding the right balance is crucial. Too much can cause mineral deposits to form in your machine. Too little could result in a weaker cup of espresso. The ideal espresso water is soft and high in alkalinity. It is best to use a filter which does not use chlorine and adds a tiny amount (TDS) of total dissolved substances to add calcium and magnesium. This will ensure a good balance between hardness and acidity and avoid the necessity of decalcifying. It is important to use water that is filtered and of high quality for the health and taste of your machine. A descaling product should be used on a regular basis based on the hardness and usage of your machine. They are available in liquid, powder and tab forms and are available at the majority of hardware stores. The Breville Barista Express is a top-of-the-line, luxurious home espresso machine designed to bring the experience of a cafe into the home. It offers more advanced features than other beginner machines that are geared towards coffee lovers who wish to refine their technique and improve their craft. The thermocoil heating mechanism with integrated PID controller, centered on the group head makes it easy to regulate the temperature of your coffee. This is an advantage over other models at the entry level, which need you to spend much time “temperature-surfing” to achieve consistent espresso shots.