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How a Coffee Espresso Machine Works Understanding how complex devices function will make them easier to use and appreciate. It can also help you determine which one is the best fit for you. Temperature and pressure of water are two key factors in espresso machines. The water temperature should be between 195 and 204 degrees Fahrenheit to ensure optimal flavor extraction. Pressure is also important however too much can overpower the taste of the coffee. The ideal pressure for coffee is nine bars. Types If you're a lover of coffee who likes a more rich and fuller-bodied flavor than that produced by a standard drip coffee maker, an espresso machine might be right for you. Espresso is a concentrated coffee brew made by pushing pressurized hot water through finely ground beans inside the portafilter. There are a variety of espresso machines, however they all have the same features. The most popular type utilizes a pump that drives pre-heated brewing water through the system to produce high pressure. Coffeee can be powered by electricity or gas. There are also different kinds of pumps that generate different levels of pressure. Many espresso machines let users choose whether they would like to use pre-packaged coffee pods or freshly ground coffee beans. Fresh grounds are more flavorful and allows users to alter the strength of the coffee, and saves money over time as opposed buying pre-packaged pods. These kinds of machines typically come with a built-in grinder, which can begin the process with high-quality, fresh coffee grounds. Most come with a steam wand that can create the hot thick, frothy coffee milk typically used in drinks such as cappuccino and latte. While manual espresso machines aren't as well-known as semi-automatic or automatic alternatives, they offer greater control over the brewing variables such as the time to cut (end) the shot. Additionally, these kinds of machines can be adjusted to accommodate different preferences of the user, such as altering the size of the shot, or the strength of the coffee. The espresso machines are fitted with a reservoir which holds water and a portafilter handle and a spigot, where the ground coffee is made. The spigot is mounted in the grouphead from where the portafilter draws espresso shots. These machines have an electronic control panel that allows you to alter the temperature of the water, the brewing time and the amount pressure. They are usually operated by an electric switch, however some are operated by a lever that can be operated by hand. Origins In the early days espresso coffee was created by pressing steam-water mixtures into ground coffee. Baristas had to work hard and spend hours in this. As coffee became more popular and the demand for a quicker method of making it increased. The idea for the espresso machine came from this. In 1884, Angelo Moriondo patented his new steam machinery that pushed steam and water through ground coffee tamped pucks under high pressure. Achille Gaggia's hand-pumped espresso machines improved the design of the original in 1947. This model pumped more pressure on the coffee, extracting more colloids and oils. It also assisted in the production of crema, which is the golden-colored layer that adorns a cup of espresso. Gaggia marketed his machines using rhymes and targeted advertisements in entertainment and sports. The machines became known as Cimbali and the word espresso became synonymous with these copper-based constructions. Milanese manufacturer Luigi Bezzera was a barista and he had the know-how to develop espresso machines that were more efficient than competitor's devices. He improved the original Moriondo design and introduced portafilters and multiple brewheads. These innovations are employed in espresso makers today. He was the first to patent single-shot espresso and that is how he invented the espresso we enjoy today. Desidero Pavoni was a cafe owner and entrepreneur who was inspired by Bezzera's invention. He purchased part of the patent issued by Bezzera and marketed his version as the “Ideale” espresso machine. The model isn't identical to modern espresso machines, but it was the first commercially accessible model. Pavoni's machine set the standard for the one-ounce output of espresso and was the first person to use pressure to create a dense crema. This was a major step forward for the coffee. He also reduced the temperature of the boiler and employed the valve to allow pressure to increase and down at regular intervals. This improved the consistency of the brew and reduced the loss of heat. The pump was a significant improvement to the espresso coffee maker and is still an integral component of modern espresso machines. Variations There are a variety of espresso machines, each having distinct processes and a distinct beverage. Ultimately, the choice of machine is based on the kind of coffee you prefer. Espresso is different from other coffee drinks based on the way the beans have been ground and the type of water used, as well as the amount of pressure used during brewing. One of the most common is a pump-driven espresso machine, which uses an electric pump to send water through a basket with ground coffee, and an iron filter. This type of machine is usually the easiest to use and doesn't require any specialist knowledge to operate. It is also the cheapest of all coffee espresso machines. Manual espresso machines are an alternative that is very popular. It allows you to regulate key variables of brewing, like water temperature and pressure. Espresso is best enjoyed when the water is between the 195 and 204 degree Fahrenheit range, while ideal pressure is between 15 to 9 bars. These machines typically come with a group head in which you can lock the portafilter. You can pick between single- and double-wall filter baskets, both of which come with a handle on one side you turn to secure them into the machine. A French press coffee maker is a great alternative for those looking to bring the rustic, European style of brewing into the workplace. These machines are made from metal or glass and have a lower chamber to hold the grounds. An upper chamber with a filter sits on the top. You pour hot water over the beans, wait several minutes, then remove the upper chamber to enjoy a delicious, bold cup of espresso. Capsule machines are a sleeker alternative that could be a great addition to an office. They operate by heating the pod of coffee inside, which is then placed into a cup of hot water, resulting in a smooth, full-bodied coffee without a lot of effort. They are also easy to clean and could be a great addition to a workspace that caters to clients or has lots of one-on-one meetings. Benefits Whether you run a cafe or work in an office setting having a coffee and espresso machine can save you time and money. By avoiding the need to go out and deal with long lines at the coffee shop early in the morning, you will be able to begin your day in a positive manner. This will give you the energy you need to stay focused and on the right track throughout the day. Many coffee and espresso machines are designed with features that allow you to manage every aspect of brewing including temperature, extraction settings as well as brew size and much more. These controls let you make drinks with the exact flavors and aromas that you want. You can also pick the models that make use of coffee pods or whole ground coffee which allows you to create an array of different drinks with the same machine. Many of the most sought-after coffee and espresso machines are also constructed with top-quality materials that will last for many years. This means they can stand up to high use, while offering exceptional aromas and flavor. A lot of machines are designed to be easy to clean, which will ensure an environment that is healthy for your employees and customers. Modern espresso machines can also help to reduce energy and waste costs. For example, a modern espresso machine and coffee maker can reduce water consumption by filling to the desired amount when it's ready to use. This eliminates the need to constantly refill the tank, which could reduce the amount of water consumed and energy consumption. Some machines also have a system which detects when the reservoir is full and shuts off the machine automatically after brewing. This means that you don't have to check and refill the water reservoir, which can reduce the chance of spills. Many espresso and coffee makers also come with advanced cleaning features that remove calcium deposits from the machine's pipes. Descaling is completed by wiping the coffee and espresso machine with a mixture of white vinegar and warm water. Descale your machine as often as three times per year.