The invention concerns a method of producing output wares of the highest possible quality from input wares, wherein the input wares being processed are optically scanned, brought to a target weight, and then formed into a shape suitable for packaging and/or further processing. In the known methods, tuna fish is packed in cans or other containers , during which the structure is substantially lost because of the processing. The invention avoids this by the process steps of using deep-frozen input ware to carry out the method, scanning the position, shape and size of the individual input ware by an optical scanning means with direct or indirect consideration of the fiber position of the tuna fish meat, calculating at least one cutting line through the input ware for the cutting off of a tuna fish cut having a desired target weight and/or a desired shape, wherein the calculation of the cutting line involves an optimization process, through which, besides determining the necessary volume to achieve the target weight after the cutting, the cutting line is established as perpendicular as possible to the fibers of the tuna fish, and cutting along the calculated cutting line in one cutting step.
