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Blog entry by Lelia Orosco

15 Things You Don't Know About Espresso Machine Coffee

15 Things You Don't Know About Espresso Machine Coffee

How to Make Espresso Machine Coffee

Espresso machines can make an excellent cup of coffee, but it requires some extra setup and maintenance than a typical drip coffee maker. It also requires you to grind and grind your own beans.

Pressure is a key element in making espresso. How an espresso machine works is that an heating vessel heats water to a perfect temperature, then forces it out of the spouts, and then through the grounds.

Temperature

beko-cep5152b-espresso-pump-coffee-machine-15-bar-1200ml-tank-black-8339.jpgEspresso is made by forcing hot water, under pressure, through finely ground coffee beans. The temperature of water is crucial to the final shot. Low temperatures lead to inadequate extraction of the essential flavor compounds. Temperatures that are too high can result in excessive extraction, which could cause bitter or burned taste.

The ideal temperature for espresso is between 195 and 205degF. This temperature can be achieved using a grouphead designed to ensure the same temperature and stability throughout the brewing process. The most popular type of group head is the E61, which provides the stability of temperature as well as pre-infusion capabilities and lever control.

When altering the espresso machine for different roasts and brew ratios it is important to consider the effect of temperature on the extraction yield and crema. The ideal temperature will vary depending on the roast and bean. However the general rule is that lighter roasts with higher brew rate require higher temperatures. A reliable thermocouple is crucial to keep the temperature at a constant level.

Pressure

In the process of brewing, espresso machine coffee is pressure-pushed through finely ground and tamped grounds. This creates chemical reactions that extract flavors, oils, and other soluble components from the beans. The resulting beverage is typically richer and more flavorful than regular coffee.

The ideal espresso machine pressure should be nine bars which is the equivalent of the atmospheric pressure at sea level. The soluble components in the espresso bean are most effectively extracted at this pressure.

However, some espresso machines may advertise 15 or 20 bars of pressure. Although these machines can achieve these levels of pressure however, they may not be able to maintain the pressure during the extraction.

One bar of pressure equals to 32 pounds per square inch (PSI) of the tire of a car. It's more than four times the pressure that a professional espresso machine for home cyclist uses when pumping up their bicycle tires. The ability to control espresso machine pressure and create consistent espressos is the key to any serious home barista.

Water

The water you use in your espresso machine is one of the most crucial aspects of a good cup of coffee. The right water helps your beans reach their maximum potential. However, the wrong water could cause problems such as clogged pipes, or damage to your expensive machine.

The best choice is a natural spring water that is high in minerals for ideal espresso extraction. This water will enhance the taste of your espresso without chalky mineral traces that are found in tap water or bottled waters. This is an excellent alternative to distillation or reverse osmosis water, that can be too pure and can cause issues with flavor.

It is not recommended to use a water filtering system that removes the mineral content of your tap water. This can lead to flavor and extraction issues. One option is to purchase a water test kit which will provide you with the average hardness of your water in your area. This information can be used to identify the ideal filtration system for your espresso coffee machine machine.

Beans

The majority of coffee enthusiasts tend to be very involved in the process of making espresso. They are obsessed with a variety of factors, including temperature, water pressure and viscosity. If one of the variables is not functioning properly the whole shot could taste bad.

The beans used are the most important factor when it comes down to espresso. Many people believe that certain kinds are suitable for espresso. While certain beans are suited for certain purposes, any roasted bean can be used to make espresso. Espresso beans are roasted longer than regular coffee beans, and tipycally beyond the second crack. This creates a darker appearance and makes them more water-soluble.

Medium or dark roasted beans are the best for espresso as they impart the espresso with richness and boldness. Lightly roasted beans can be used to create great espresso, especially if they are pre-ground to make it easier for an espresso maker.

Milk

Espresso and milk is a timeless combination. Not only does the coffee boost energy levels, but the steaming milk helps to balance the bitterness of the espresso, and gives it a delightful creamy flavor. This is one of the most delicious culinary pairings!

If you decide to purchase an espresso machine that is able to create cappuccino or latte take a examine how easy it is to use. Many of the best espresso machines have an ice cube that can be filled with hot or cold milk as well as a steam wand, and portafilters for pulling the shot. Certain models also come with a built-in grinder as well as a tamper and a frother.

melitta-automatic-espresso-machine-series-300-purista-model-f23-0-102-1-liter-black-6766027-15997.jpgThe steam wand should be cleaned prior to using it for the first time throughout the day (or after each cup of espresso) to remove any water that has condensed. The process takes only 30 seconds, but is vital to keep your machine running smoothly. Inability to purge could result in an unpleasant taste or the build-up of bacteria that may alter the flavor and aroma of your drinks. It's simple to perform and should be a part of your routine maintenance schedule.

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