Suzhou Coffee Machine maintenance Shanghai Coffee Machine maintenance Coffee Machine what's going on

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When the coffee machine is in use, it does not mean that it will not break down. when the coffee machine breaks down, we should know the maintenance methods of the coffee machine. Do you know how the coffee machine works when making coffee? Let's talk about the principle of the coffee machine.

Several common classifications of household coffee machines

Many people like to drink coffee now, because the caffeine in coffee is the most noticeable of all the ingredients in coffee. Taking a comprehensive view of the coffee pots (machines) used by countries all over the world, they can be classified into the following types:

1, steaming coffee machine: mainly put the coffee powder in various types of containers, add water to cook on the heating power to extract the coffee liquid, and then filter to remove the coffee grounds before drinking.

2. Leaky coffee machine: it is mainly by heating the water and pouring the coffee powder layer, and then using the natural drip to extract the coffee liquid. Because the boiling water is in the coffee powder for a long time, its caffeine content is also high. The function of American coffee machine is usually simple, and the operation is correspondingly more convenient.

All you need to do is press the button and wait for the delicious coffee to appear, which is much more convenient than the traditional Italian coffee maker. Most of the American coffee machines are suitable for household use, and most of the Philips and Siemens coffee machines common in supermarkets are American coffee machines.

3. Suction (plug-type) coffee machine: mainly by heating the water and using the steam water produced by it through close contact with coffee powder, after a short stirring time, and then filtering the coffee grounds and then extracting the coffee liquid. The mellow coffee that can be brewed in a siphon coffee pot can not be compared with ground coffee brewed by machine.

4, steam coffee machine: this is mainly the high-pressure steam produced by heating water through the coffee powder layer in a short time to extract coffee liquid, generally refers to the Italian coffee pot (machine), steam coffee machine is the principle of quickly soaking coffee powder with steam.

The coffee brewed is lighter than the pump coffee, has no grease foam, has a higher temperature, and tastes heavier than the coffee brewed by the drip coffee machine. Because it is extracted by coffee powder using high-pressure steam hot water in a short time, it has less caffeine and higher temperature, which is more popular in the world.

Working principle of coffee machine

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.

Coffee machine maintenance

In the coffee machine, there will be a boiler, and in the middle of the pump coffee machine is an internal pipe, which can introduce fresh cold water into the pipeline. When the pump pushes fresh cold water through the pipe, the cold water will become hot because of the hot water in the boiler, but because there is a tube around it, the fresh water will not come into contact with the hot water in the outer boiler.

The main reason why the inner water pipe is bent is to allow enough time for cold water to come into contact with the external boiler into a hot water temperature that can make coffee.