Seed crushing device comprising a receiving space for a seed grain, defined by one or more side walls, designed to be positioned in at least a first position, where the receiving space is freely accessible from its top side for placing the seed grain in the receiving space; and where the receiving space at its bottom is closed to support a seed grain that has been placed, and a second position, where the receiving space is freely accessible from its top side to accommodate a pestle in the receiving space, and where the receiving space at the bottom is closed for crushing the seed grain by pushing the pestle towards the bottom and for supporting the flower thus formed; and a third position, where the receiving space is free at least the bottom for discharging the flower in a filling position from a deep well plate.