What it seems to be
A simple coffee maker.
What it really is
For an Italian, the moka is not a kitchen utensil. It is an inheritance.
Almost every family has its own way of using it. The water goes up to the valve, although some put in a little less. You do not press the coffee down. Or perhaps you do. Some turn off the heat before it has finished coming through; others wait for the final gurgle. Every home guards a small certainty, handed down as if it were a law of physics.
The curious thing is that nobody thinks they merely have a habit. They think they have the right method.
The moka turns an everyday gesture into a domestic tradition, where the recipe matters less than the memory of the person who taught it to you.
Scene
— Stai schiacciando il caffè?
— Certo.
— Ma non si schiaccia.
— Mia nonna ha sempre fatto così.
— ...
— E faceva un caffè buonissimo.
The discussion ends there.
The key to understanding it
For Italians, every moka comes with a family recipe.