Dynamic crusher for treading fruit, particularly grapes, comprising a treading chamber (11) comprising, when considering the direction of the path followed by the fruit in the crusher, an upstream fruit-introduction opening (13), a downstream discharge opening (14) for discharging the must that results from the treading of the fruit, a rotary ejector (12) that allows kinetic energy to be imparted to the fruit (F) introduced into the treading chamber, and allows said fruit to be cast against a fixed fruit-bursting wall (10), characterized in that the rotary ejector is mounted such that it can rotate about a vertical axis (18) and a fixed fruit-bursting wall is positioned around said rotary ejector or facing the peripheral edge thereof against which fruit is cast, rotation of which allows the fruit to be cast, under the effect of centrifugal force, against said fixed fruit-bursting wall, causing the fruit to burst. The invention also relates to a method for dynamically treading fruit using such a crusher.
