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What to Look For in a Barista Espresso Machine The espresso machine is one of the most complicated coffee machines in the world. It is made up of three main parts. The bottom holds the water while the middle part is a filter-basket with a metal filter. This machine was a huge success and helped to popularize the prosumer (home barista) espresso market. Its features include a low-pressure pre-infusion with the 2.2L boiler, and the brewing pressure of 9 bars. Pressure If you're serious about your coffee then you're aware that the pressure of your espresso maker is a crucial factor in how your drinks come out. The pressure of your machine is essential to brewing great coffee, whether you want a thick layer or the perfect balance of acidity and flavor. BARs (Barometric Pressure) refer to the amount of force exerted on the coffee grounds when your espresso machine is pumping out its high-pressure water. 9 BARs mean that your espresso machine is pushing heated water through the coffee grounds at the rate of nine times the current atmospheric pressure. The pressure of your machine is crucial because it allows the water to pass through the coffee grounds at the proper speed and intensity. If the pressure isn't high enough, the oils and flavors won't be extracted properly. If the pressure is too low, the flavors and oils dissolved won't be extracted properly. You can regulate the pressure of your espresso maker by changing the screw of the espresso maker. Commercial machines as well as some high-end home appliances use pumps with rotary that can be adjusted. But for the more affordable home machines that use an oscillating pump, changing the pressure is difficult without using DIY hacks. Companies like Cafflano however, are working on technology that uses Pascal's Principle in order to maintain pressure within the portafilter throughout the beer making process. Temperature Temperature is among the most crucial factors in the making of a good espresso shot. Hot water can cause burning of the grounds of coffee, which can result in a bitter espresso. The ideal extraction temperature is around 200 degrees Fahrenheit which allows the water to extract all of the coffee's desirable flavors without burning the grounds or over-extracting. The best espresso machines will include a thermoblock or thermocoil that warms the water and keeps it at a constant temperature throughout the entire extraction process. The Breville Barista Express, for instance, comes with PID (Proportional Integral Derivative) system that continuously monitors the temperature of the water and adjusts it as needed making sure that the brewhead remains at the perfect temperature to extract the coffee. Most coffee lovers know that the temperature of your espresso machine is an essential element in making a quality cup of coffee. The ideal temperature for espresso is between Fahrenheit between 190 and 196. To achieve this, you need a machine with a good thermoblock, thermocoil and a boiler that is appropriately sized. It is also important to pre-heat your espresso maker or portafilter before making a shot. Beginner espresso makers often make the mistake of not preheating their machines. It is recommended to read your espresso machine's manual prior to attempting to use it for the first time. Grind A barista machine must give you a variety of grind settings so that you can have the most control over your final cup of espresso. Some machines include an analog pressure gauge, that is stylish and can help you gain knowledge about your brewing techniques. You should strive to maintain an average pressure of nine bars throughout the brewing process. Although this machine can't reach the desired pressure, it's close enough and will serve you well. Another excellent feature of this machine is that it has a built-in burr grinder. This feature is ideal for novices because it doesn't mean having to purchase an additional grinder. The stainless steel conical grinder features 18 settings that range from “coarse to fine.” This grinder isn't as powerful as a stand-alone device, but it can get you started on the path to creating great espresso shots. It's easy to clean, and you can also pause it while grinding to avoid the creation of a mountain of grounds that will spill all over your portafilter on its way to the tamping. This is a stunning and practical machine that will allow you to experience the excitement of becoming a barista from home. It's a great choice for anyone who wants to to look back at the memories of pouring the microfoam into their morning coffee, locking a portafilter into the grouphead, and then tamping with precision. A bean-to-cup machine is a great option for those who want convenience. Water Water can be a tricky thing to master. Finding the right balance is vital. Too much caffeine can result in mineral deposits on your machine, however too little and you'll struggle enjoy a satisfying cup of espresso. The ideal espresso water is soft and high in alkalinity. This can be achieved with an effective water filtering system that does away with chlorine and then adds back in a small amount of total dissolved solids (TDS) to add calcium and magnesium to the mix. This will result in an ideal balance of alkalinity and hardness and help avoid the necessity of decalcifying your machine. It is vital to make sure you use water that has been filtered to a excellent quality for the health and flavor of your machine. Descaling products should be regularly used depending on the hardness and frequency of use of your machine. The products are available in tab, liquid, or powder in a variety of hardware stores. The Breville Barista Express, a top-of-the-line home espresso machine , is designed to bring the cafe experience into your home. It is more sophisticated over other basic machines that are designed for those who are looking to refine their techniques and improve their craft. The thermocoil heating system with integrated PID controller that is centered around the heated group head makes it simple to regulate the temperature of your coffee. This is a huge benefit over other models that are entry-level that require long periods of “temperature-surfing” to ensure consistent espresso shots.