Abstract: A method of preparing tundishes for use for continuously casting steel, whereby the cavity of the tundish is provided with a lining of performed slabs of refractory material in which the preparation is carried out using a preparation unit which comprises a lifting device supporting a manually moveable handling tool for the slabs, which transports them individually from a stack of slabs stored within reach of the handling tool and places them into their respective positions against the bottom, end or side walls of the inner cavity of a tundish using the necessary turning, tilting and movement in the vertical or horizontal plane for each slab during its transportation from the slab stack to its required position.