An espresso is a traditional Italian coffee beverage. The first best espresso machine was patented in the year 1884 in Turin, Italy.
Espresso coffee is brewed by forcefully directing water that is at nearly boiling point through finely ground coffee powder. The result is a thicker and frothier beverage. The flavors in the drink are concentrated, which is one reason for its popularity. It also forms a base for many other related coffee beverages such as mocha, latte, etc.
How it works?
How does an espresso machine work? An espresso machine shoots out water that is 90 degrees Centigrade hot (or at a temperature equal to 195 degrees Fahrenheit) using 9 bar of pressure into a puck of freshly ground coffee. The oils in the finely ground coffee are thus extracted and emulsified to create a rich, nearly syrupy liquid.
Ideally, a machine can churn out a double shot of espresso within 20 to 25 seconds from when its pump is initially switched on.The amount of time necessary can be adjusted by putting in coffee that is either of a finer or coarser blend. Or you can change the tamping pressure.
Types of espresso machines
Stove Top Espresso Maker
The stove top espresso maker is the simplest to use. It is made up of the base, brewing basket, basket screen and the collection chamber. It is small and easily transportable and is one of the main kinds of non-electrical espresso machines.
Steam Espresso Maker
Though the steam espresso maker is similar to the stove top, it is a steam unit and works on the pump-power principle. It also has a portafilter, which is a filter holding/coffee dispensing unit.
Piston Driven Espresso Maker
The piston driven espresso machine is the oldest type of espresso machines. They were first made when espresso was first discovered. The modern espresso maker machine is an upgrade of this retro espresso maker. Invented in 1938, it is used widely in thematic parties or shops.
Pump Driven Espresso Machine
The pump-driven espresso machine is the most used type of espresso machine commercially. It is a variation/upgrade of the piston driven espresso maker, which has a pump instead of a piston.
Automatic Espresso Machine
The automatic espresso machine produces a more consistent amount of espresso, as compared to the other types of machines. Water flows into the flowmeter, until it reaches the previously programmed level and then the ‘shot’ is cut.
Super Automatic Espresso Machine
This machine automatically grinds the coffee. Some machines can adjust the shot temperature and water flow.
Instructions on how to use espresso machine
1. It is important that you have a good quality machine. you can purchase one that comes with a built in grinder (as the finest ground beans will make the best coffee).
2. Get some cold clear water and pour this into the machines water tank. Then make sure that the boilers cap is secure. For one shot of espresso use one ounce of coffee for a double shot use two ounces of coffee. Some machines will give as much as four shots in one go.
3. Place the basket of coffee in the filter holder. If you want you can place a little pack in the ground coffee and the filter has a measure which will tell you the amount for the type of espresso you are preparing.
4. Brush off any grounds from the top and sides of the filter and then place the filter holder inside the machine.
5. Place the glass carafe that comes with your machine under the spout and then turn the machine one. The machine will warm the water up to the correct temperature and then force it into the coffee grounds. This should take between 15 to 20 seconds and as the coffee starts to flow into the cup the foam starts forming on top. This foam is brown in color and is known as Crema but once this foam becomes white in color then the best tasting liquid is not flowing any longer and you should stop the machine now.
6. Remove the cup immediately and your cup of espresso is now ready to drink.
When purchasing the appropriate espresso machine, however, you’ll likely first and foremost prefer to buy one of the easiest espresso makers, which is a pump-driven or even motor-driven espresso maker. Many of these espresso machines can be quite expensive, but depending on how passionate you are about your favorite coffee drink will most likely dictate how much money you’re ready to spend. For starters, though, an affordable espresso maker could be precisely the ideal one to start with.