A food slicer has a housing with a first push-button for actuating an electric switch for operating the cutting blade and a second push-button, i.e., a safety button, locking the first push-button against actuation. The second push-button actuates a mechanical lock which can be engaged and disengaged, blocking the first push-button in an inserted position of the lock, thereby preventing actuation of the electric switch that triggers an electric motor drive used to actuate a circular cutting blade. The first push-button is formed with a stop surface for the lock on which the lock is arranged, when it is in an inserted position, either at or in close vicinity of an axis extending through the center of the push-button surface, pointing in the direction of actuation, and on which the lock engages in an inserted position.