Italian coffee machine structure internal structure diagram working principle diagram of cooking head

Italian coffee machine structure internal structure diagram working principle diagram of cooking head

It is usually equipped with a boiler to generate hot water, which is pressurized to about 9 atmospheric pressure and then flows through the powdered coffee beans in the metal filter to brew the coffee. The coffee brewed by this pressurized hot water is thicker and has emulsified oil, often called espresso or espresso. There are many kinds of Italian coffee machine. Generally speaking, for commercial use, the most common one is single boiler, and then there are double boilers and multiple boilers. Of course, the price also becomes more expensive, in addition to the general electronic control switch, there is also a pull-out Italian coffee machine, each has its own advantages.

The principle of Italian coffee machine is to use a mixture of high-pressure steam and water to quickly pass through the coffee layer and instantly extract the coffee, so that the coffee temperature is very high, the content of caffeine and other impurities is very low, and the taste is rich. At first, it was a semi-automatic coffee machine, which we used to call Italian coffee machine, which got its name because it originated in Italy. Today, Italian coffee machine has been fully automated. At first, the machine was operated manually to grind powder, press powder, load powder, brew and manually remove residue.

1. Working principle of drip coffee machine

When the power is turned on and the switch is turned on, the indicator light is on and the heating tube starts to work. When there is no water in the tank, the temperature rises. When the temperature rises to a certain temperature, the thermostat is disconnected and the heating tube stops working. When the temperature begins to drop, the thermostat is restored and the heating tube continues to work to achieve heat preservation.

2. Working principle of high pressure steam coffee machine

The coffee pot has a high-pressure chamber, and when the water begins to produce a large amount of steam, the pressure in the high-pressure chamber is greater than the atmospheric pressure, so the water rises along the pipe and flows into the coffee filter under the action of steam pressure in the chamber. the coffee seeping from the bottom flows into the coffee cup. There is a safety valve at the top of the high pressure chamber (to ensure safety). Or open the air valve, you can use steam to bubble the milk.

The built-in closed small boiler water tank of this kind of coffee pot mainly relies on the steam produced by water at high temperature to produce coffee. The coffee produced by this kind of product has a stronger flavor than the drip coffee pot and is more suitable for people with higher requirements for coffee taste. This kind of goods generally have the function of beating fresh milk, and you can make "cappuccino" by yourself.

The following is to talk about the use of several coffee machines that are often used by ordinary families. from the point of view of the coffee machines sold on the market, they can be classified into the following categories: siphon type, high pressure type, dripping type, cooking type, and cold shrinkage.