System and hand washing verification process.

A method and system for checking the quality of hand washing. The hand washing verification method comprises the following steps: the inclination of a soap container (2) is detected by means of a first inertial sensor (204) and the duration of the tilt; data (d1) dependent on said tilting and said duration is transmitted wirelessly; a bracelet (1) displays an indication (10-12) said data dependent and representative of hand hygiene. The invention may for example be put into practice in the care of a hospital, to reduce the incidence of nosocomial infections.