Abstract: A stackable mold unit for molding and cooking a food product, the mold unit comprising a plurality of adjacent compartments to contain the food product in corresponding food product units, with the stackable mold unit being capable of being stacked on an identical stackable mold unit, wherein the adjacent compartments being separated by longitudinal inner vertical walls defining a space between adjacent compartments, with the space between adjacent compartments including flaps defining a fluid flow along the longitudinal inner vertical walls and towards other identical adjacent mold unit and with end walls including opening for the passing of fluid.

Abstract: A system for stacking and/or unstacking stackable units in a units-handling installation, wherein the system comprises a frame carrying holding means for taking a stackable unit at a time from a stack of units and remove the units, one at a time, from the stack, and for taking units provided at the system to stack them into a stack of units, and conveyor means for receiving units to be stacked and delivering unstacked units out of the system.