Does the fully automatic espresso machine need to be in and out of water?-the principle of Italian coffee maker

Does the fully automatic espresso machine need to be in and out of water?-the principle of Italian coffee maker

The phenomenon of stopping heating occurs when it is difficult to get water on the machine. Because I don't know the model you use. Do not know whether the machine is automatic water or water tank, water tank, then how to detect the water level, may be caused by the long-term use of pure water problems. But these factors may affect judgment because of different machine principles.

Sometimes those who encounter half a bottle of water will say that this term is out of date, and now the best semi-automatic coffee machine is variable pressure.

Indeed, since 2004, the real variable pressure coffee machine has been born, gradually spread all over the world, and began to enter China in recent years.

But the pressure swing coffee machine is not random, its pressure control requirements are far greater than the traditional semi-automatic Italian coffee machine, coupled with the price of more than a hundred thousand is not affordable to the average family.

To quote the explanation of Brother Bird, the Great Coffee God, "how to understand the variable pressure technology: to reach the specified pressure value at any time, and to be stable, and to remain unchanged after changing to the specified pressure value again, is the real variable pressure."

Since we can't afford the Tuhao coffee machine, we should return to the traditional espresso machine and return to espresso's golden rule of "extracting 1 ounce (30ml) of espresso (espresso) in 25-30 seconds at 90-92 degrees Celsius under 9bar pressure."

Although this golden rule is still controversial in professional coffee forums in recent years, 9bar pressure is basically not controversial, so a bunch of coffee machines boasting 15bar or higher actually refers to the most high pressure of the coffee machine, which is of little significance, and is generally used to fool newcomers. Stable pressure and stable temperature are the criteria for measuring Italian coffee machines.

If you have strong hands-on ability, you can check whether there are any parts clogged in the water intake circuit of the machine. And whether the position of the boiler temperature probe needs to be adjusted.

1. Soften water

This is very important ~ hard water is fatal to coffee machine boilers and solenoid valves! In addition, clean water is not the same as soft water ~ so you can save everything, don't save the water softener, otherwise don't be too expensive when washing the boiler!

two。 Clean water

Generally there are two kinds of coarse filtration and fine filtration. Frankly speaking, if you only use coarse filtration instead of fine filtration, it would be better to save nothing at all! If the budget permits, it is recommended to install, after all, the bar already needs water purification equipment, which can be shared.

3. Upper and lower water

Coffee machine and the location of the water must be planned, most manufacturers in the installation of coffee machine, only responsible for 1 meter to 1.5 meters long pipeline ~ so the distance is too far, in the installation will cause a lot of trouble. In addition, the diameter of the pipeline is required, if the upper pipe is changed into a very thin without authorization, it will cause the pump to be unable to pump water! There must be a three-way connection in the water, so it is convenient to clean the sewers later, because the coffee machine has very little water, and with coffee grounds, the coffee grounds will stink after a long time, so be sure to put on silicone and seal it.