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How a Coffee Espresso Machine Works Understanding how complex devices work will make them easier to use and appreciate. It can also help you determine which one is the best fit for you. Two important factors in espresso machines are pressure and temperature. For optimal flavor extraction water temperatures should be between 195-204 degrees Fahrenheit. Pressure is also important however too much can ruin the taste of the coffee. The ideal pressure is nine bars. Types If you're a lover of coffee who likes a more rich more full-bodied, full-bodied taste than the one produced by the standard drip coffee maker, then an espresso machine might be right the right choice for you. Espresso is an intense brew made by forcing pressurized water close to the boiling point through finely ground coffee inside a portafilter. There are a variety of espresso machines, but they all have the same features. The most common type uses pumps that drive heated brewing water that has been pre-heated through the system to produce high pressure. The pump is powered by gas or electricity and there are various kinds of pumps used to produce various levels of pressure. Many espresso machines allow users to choose between pre-packaged pods as well as freshly ground coffee beans. Fresh grounds are more flavorful and allow the user to alter the strength of their coffee. They also save money over time compared to pre-packaged pods. These kinds of machines typically include a built-in grinder to begin the process with high-quality, fresh coffee grounds. They also have a steam wand that can be used to produce the hot, frothy milk often used in drinks like cappuccino and the latte. Manual espresso machines may not be as popular as semi-automatic or automatic alternatives, but they do offer more control over the variables that determine when to cut off (end) the shot. These machines can also be adjusted to fit the user's preferences like changing the strength of the coffee or the size of the espresso shot. The espresso machines come with a reservoir that stores water, a portafilter handle, and a spigot, which is where ground coffee is made. The spigot is fixed within the grouphead, where the portafilter is used to pull espresso shots. These machines are equipped with a control panel that allows you to change the water temperature, the time of brewing and the pressure. They are usually operated by an electric switch, but some are operated by a lever that can be operated by hand. Origins In the beginning espresso coffee was prepared by pressing steam-water mixtures into ground coffee. Baristas were required to work hard and spend hours in this. As the popularity of coffee grew and demand grew for a faster method to make the beverage. This is where the idea for a coffee espresso machine sprung from. In 1884, Angelo Moriondo patented his steam-powered machine that pushed water and steam through ground coffee tamped pucks under high pressure. It wasn't until 1947 when Achille Gaggia redesigned the original design with his hand-pumped espresso machine. This model exerted more pressure on the coffee, extracting more oils and colloids. It also helped create crema, that golden-colored layer that is placed on the top of the espresso cup. Gaggia advertised his machines with rhymes and targeted ads in entertainment and sports. The machines were changed names to Cimbali and espresso was the word associated with them. Luigi Bezzera, a Milanese manufacturer was a barista with the knowledge to create more efficient espresso machines than his competitors. He made several improvements to the original Moriondo invention and introduced portafilters, multiple brewheads, and other innovations that are associated with espresso makers today. He was also the first to file a patent for single-shot espresso. This was the first step in making the espresso we drink today. Desidero Pavoni was a café owner and entrepreneur who was influenced by the invention of Bezzera. Coffeee bought a part of the patent and launched the “Ideale”, his version. The model isn't identical to modern espresso machines however, it was the first commercially accessible model. Pavoni's espresso machine was the first to create a thick, creamy crema by applying pressure. This was a significant advancement for coffee. He also reduced the temperature of the boiler, and also used an instrument that allowed pressure to increase and down at regular intervals. This improved the consistency of the coffee and decreased heat losses. The pump was an important improvement for the espresso coffee maker, and is an integral part of today's espresso machines. Variations There are different types of coffee espresso machines with different processes that create a slightly different drink. The choice of machine ultimately is dependent on the kind of coffee you enjoy. The various factors that differentiate espresso from other coffee drinks are the method by which beans are ground, the kind of water is used and the amount of pressure that is applied during the brewing process. The most well-known is an espresso machine that is driven by a pump, which uses an electric pump to send water through a basket with ground coffee and an iron filter. This type of machine can be the easiest to operate, and does not require any particular skills. It's also among the most affordable coffee espresso machines. Another option that is popular is a manual espresso machine which allows you to control important brewing variables like temperature and pressure. Espresso is most delicious when the water is between the 195 and 204 degree Fahrenheit range, while ideal pressure is between 15 to 9 bars. These machines usually come with a group head, into which you can secure the portafilter. You can select from either double-wall or single-wall filtering baskets. They have an handle that can be turned to secure the basket into the machine. A French press coffee maker is a great option for those who want to bring a more rustic, European style of brewing into the workplace. They are made of metal or glass and are comprised of a lower chamber that holds grounds, and an upper chamber with an internal filter that is placed on top. Then, you pour hot water over the ground beans, wait some time, then remove the upper chamber to enjoy a rich strong, bold cup of espresso. Capsule machines are a sleeker alternative that can be a great addition to an office. They work by heating a pod of ground coffee inside, which is placed into a cup of hot water. This creates a smooth, full-bodied cup of coffee with minimal effort. They're also easy to clean and can be ideal for an office that accommodates clients or holds lots of one-on-one meetings. Benefits You can save time and money by having an espresso and coffee machine regardless of whether you own a café or work in an office. By avoiding the need to leave and stand in long cafe lines first thing in the morning, you will be able to begin your day in a positive manner. This will give you the energy to remain focused and on task throughout your day. Many espresso and coffee machines have features that allow you to manage all aspects of brewing. This includes extraction settings, temperature and the size of the brew. With these controls, you can create drinks exactly as you would like them, with the exact flavors and aromas you desire. You can also choose between models that use coffee pods or whole ground coffee, which allows you to create various drinks with the same machine. Many of the most well-known espresso and coffee machines are constructed using materials that are durable. They can withstand the rigors of heavy use and still provide great aroma and flavor. A lot of machines are designed to be easy to clean, which will ensure the health of your staff and customers. Furthermore, new espresso machine technology can reduce energy consumption and waste. Modern coffee and espresso machines can cut down on water waste, for example, by only filling the machine up to the desired level once it is ready to use. This means that there is no need to refill the tank, which could reduce water consumption and energy consumption. Some machines also have sensors that determine when the reservoir is full and shuts off the machine when it's finished brewing. This eliminates the need to regularly check and replenish the reservoir of water which reduces the risk of spills. Many coffee and espresso makers have advanced cleaning functions that can remove calcium deposits in the pipes of the machine. Descaling is accomplished by wiping the coffee or espresso machine using a mixture of white vinegar and warm water. It is recommended to descale your machine at least once a month, but some makers suggest doing it at least every three months.