Distinctive Categories Of Espresso Machine

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.

Pistons are also a way to deliver the water using a hand lever, and this allows for an operator to pass the water through the coffee grinds by manual pulling of this lever. The long lever and mechanism adds pressure to the manner in which the water is passed, and this produces that distinct flavor. The designs vary from manual piston design, where the operator determines the pressure placed into the pulling of the lever, and the spring piston design where there is a spring to help the operator in terms of keeping the pressure consistent with every cup.

A refined version of the piston pressure machine is the pump driven machine that uses a motor to provide the pressure needed for the espresso. These espresso makers can be found in commercial establishments and are attached directly to the water supply of the establishment, whereas the home consumer models have water containers for filling up before use.

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.

As the years have gone by, the modern automated versions of the espresso machine have been developed, and these are popular in many establishments as they basically take care of most of the process. Using sensors, valves, pumps, and grinders, these automated machines allow more room for the operator to attend to more customers at one time.

These automated machines have three different versions, and many establishments have an option which type they wish to use depending upon their needs. There is the semi automatic version that uses a fully automated pump that brings the hot water through the grinds, and then a three way valve helps to release the brew pressure. Then there is the automatic machine version that has an extra inflow meter attachment to the three way valve which fully controls the amount of water that passes through, thereby regulating the brewing time for each cup.

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 owns a best espresso machines blog. He writes reviews on many best espresso machine brands like Bosch espresso machines, DeLonghi espresso machines, Breville espresso machines, and Kalorik espresso machines.