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Some Types Of Espresso Machine

By Ken Wright

There are many espresso machine models and they all work differently in terms of function, yet they have one single goal, and this is to be able to produce that Italian coffee popularly known and loved as espresso. The machine has become popular with consumers both in establishments as well as the home, and various types can be explained based on how they work.

The making of espresso is so sensitively delicate that the combinations of temperature, pressure and texture of the grind can really change the taste of that one cup. The espresso coffee machines are a big help in trying to maintain a consistency in regulating these three factors in order to be sure that the results will always be the same. Some espresso machines go as far as having an attachment steam wand in order to be able to produce latte or cappuccino in the process.

In an attempt towards maintaining pressure consistency, the very first espresso machines were powered by steam, or steam driven. The water is driven by steam pressure through the coffee grinds in order to be able to serve more cups yet still maintain a consistent flavor in every cup. The design is still used by many budget friendly machines that are combined with drip coffee machine appliances.

The piston driven version of espresso machine requires the use of a hand lever that is used to send the hot water through the grinds, and an operator does the work in pumping the lever mechanism. The pressure applied by the operator creates a unique espresso brew, and this is quite popular in many high class establishments. There is a manual piston design that requires direct pressure from the operator, and also a spring piston design that helps an operator in controlling the pressure to be more consistent and maintaining the taste of the coffee.

Pump driven machines are a refined version that uses a motor to pump the necessary pressure level into the coffee for brewing espresso. Most of these types of espresso makers are found in commercial establishments wherein the commercial machines are attached directly to the water supply, and lower end home consumer versions of the machine have built in water reserves.

The espresso machine has also evolved into the air pump driven models that use compressed air to force the hot water through the coffee grinds. The water can be poured into the machine from an already boiled source, such as a kettle, and the compressed air then releases this to the grinds. There are three ways of releasing the water and these are with the use of an electric compressor, hand pump, or pressurized cartridges. The non electric versions are much lighter and more portable for the avid traveller who wishes to take his coffee maker with him.

There are also more sophisticated machines that run on automation, as they basically do much of the process on their own using a combination of pumps, valves, grinders, and sensors to make things easier on the operator. Usually this removes the manual aspect of delivering the water through the grinds, making it much easier to produce more cups in even portions.

Commercial establishments opt for the automatic machines and utilize the three different versions of them, depending upon their needs. Semi automatic machines use the pump to deliver the hot water and three way valves to release the brew pressure. Automatic machines have an extra inflow meter attached to the valves that regulates the brewing time and the amount of water that has passed through, making more even portions.

The super automatic version, although few in terms of production, is fully automated from the grinding and tamping, all the way to the brewing and serving of espresso shots. This version allows unskilled operators to basically just provide the coffee beans and water in order to consistently produce cups of espresso. Many well trained baristas do not like this machine, along with other espresso machines as they insist it takes away the real flavor of the coffee.

Ken Wright shares all the information he has on the best espresso machines in his blog. His espresso machine review blog has all the tips, reviews and guides for coffee enthusiasts like him.

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Article Citation
MLA Style Citation:
Wright, Ken "Some Types Of Espresso Machine." Some Types Of Espresso Machine. 25 Aug. 2010. uberarticles.com. 8 Oct 2015 <http://uberarticles.com/food-and-drink/coffee/some-types-of-espresso-machine/>.

APA Style Citation:
Wright, K (2010, August 25). Some Types Of Espresso Machine. Retrieved October 8, 2015, from http://uberarticles.com/food-and-drink/coffee/some-types-of-espresso-machine/

Chicago Style Citation:
Wright, Ken "Some Types Of Espresso Machine" uberarticles.com. http://uberarticles.com/food-and-drink/coffee/some-types-of-espresso-machine/


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