Distinctive Types 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.
Espresso machines sometimes come with an added special device such as a wand in order to be able to make latte or cappuccino when the occasion calls for it. The main thing about espresso coffee is that it is so delicately sensitive that any change in the pressure, temperature, or texture could very well make or break the flavor of that cup of espresso.
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.
There are also piston driven espresso coffee machines that uses a hand lever and the hot water is sent through the coffee grinds by manual pumping of this pump. This long lever mechanism adds further pressure to the way the water passes through the coffee grinds, producing a unique version of the espresso. The manual piston design allows for the operator to directly push the water through at his desired pressure level, whereas a spring piston design provides more even and controlled pressure when used, thereby making the espresso more consistent in taste with every cup.
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.
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.
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 loves drinking coffee. He has used and tried many different types of espresso machines at home to make his favorite coffee. Now, he writes home espresso machine reviews and publishes them in his best espresso machine reviews blog to share it with his friends.