A method for grasping a row of multiple separate blocks of frozen food originating from a plate freezer, the row extending in a longitudinal direction corresponding to the longitudinal direction of the plate freezer, includes the steps of grasping the row of blocks along its opposing lateral edges by closing a clamp (1) having two grasping elements (2, 20) that extend along the opposing lateral edges of the row, wherein at least one of the grasping elements along its length includes multiple separate pinching elements (4, 40), each element for pinching one or more of the blocks, the pinching elements being individually movable with respect to the at least one grasping element in a direction perpendicular to the longitudinal direction of this grasping element, the method further including adjusting the lateral position of each pinching element when closing the clamp, by individually moving each pinching element.