2- Filter coffee machine - How does it work?

手順1 — General principles

The water enters, under pressure from the cold water in the chamber located above. The heating element, which is located on the base of the coffee machine, heats up the water (Joule effect). The water transforms into steam. Small bubbles form and fuse together, creating larger bubbles.

手順2 — Heating element

The role of the heating element is to allow the water to bubble and let it go from the cold water receptacle to the filter.

手順3 — Electrical circuit

The electrical circuit is very simple. Power goes through a switch (5), then through a thermal fuse (4) which protects against accidental overheating (~200°C / 392 F) and against excess intensity (10A).

手順4 — Hydraulic circuit

The circuit is simple. Cold water in the chamber goes down, thanks to gravity. It goes through the hole on the right (1), passing through the heating element.