How a moka pot works

The inventor of the Mocha pot is Alfonso Bialetti of Italy, who is also the founder of the Bialetti company. Billeti founded Billeti in 1919, and after World War I went to France to study, accumulating extensive experience in the aluminum industry. In 1933, inspired by the washing principle of the washing machine, Biletti invented the "Moka Express", a coffee machine that changed the traditional way of making coffee in Italy, making it easy to make delicious espresso at home.

How a moka pot works
The moka pot is made of aluminum or stainless steel and is divided into upper and lower parts connected by a conduit. The working principle is to convert the water in the lower pot into steam by heating it, and use the steam pressure generated when the water boils to push the hot water through the pipe into the powder tank holding the ground coffee powder, and then flow into the upper pot after filtering through the filter screen. The standard espresso extraction pressure in a mocha pot is 7-9bar, while the actual extraction pressure in a mocha pot is about 1bar, which despite the lower pressure, still produces enough pressure to make an espresso. When using the moka pot, it is necessary to pay attention to the water level control at 0.5 cm below the safety valve to ensure that the safety valve can work normally.

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