Espresso machines have no match on chilly, outdoor evenings

There can be no better sight than brightly lit espresso machines serving steaming coffee on chilly, wintry evenings. These machines brew coffee by forcing hot water under high pressure through finely ground coffee. This coffee has a different flavor to the filter coffee, and much of the credit for this goes to the way the machine is designed.

A typical espresso machine consists of the following parts:

– A reservoir that holds cold water to make coffee. The reservoir is not welded to the machine and can be removed for cleaning.
– A pump that pumps water stored in the reservoir into the heating chamber at high pressure.
– A heating chamber which is a sturdy, stainless-steel structure with a heating element built into a groove in the bottom. The heating element is a coiled wire, very similar to the filament of a light bulb or the element in an electric toaster, which gets hot when electricity passes through it.
– A porta-filter which holds the ground coffee. Inside the filter is a small removable screen into which the ground coffee is packed. On the bottom of the filter are two spouts from where the espresso comes out
– A steam wand which is used to heat and froth milk for use in various espresso drinks. This wand is connected to the heating vessel. When the user puts the valve in the steam position, steam from the heating vessel is released out of the wand and into the milk
– A control panel which comprises of an on/off switch, two indicator lights and a control valve. One of the lights indicates that the machine is on, and the other indicates if the temperature in the heating chamber is right or not
You need to make sure that the water is heated to the right temperature, the pressure is right for frothing, the coffee is packed in the right density and the milk is hot before running the machine.