The invention relates to a method for producing output goods of the highest possible quality from input goods, wherein the input goods to be processed are visually detected, brought to a target weight and then shaped into a shape suitable for packaging and/or further processing. In the known methods, tuna fish is packaged in cans or in some other way, with the structure being substantially lost by the processing. This is avoided by the invention by the method steps of using deep-frozen input goods for carrying out the method, detecting the position, shape and size of the individual input goods using a visual detection means while directly or indirectly taking into account the fibre layer of the tuna fish flesh, calculating at least one cutting line through the input goods for cutting a tuna fish cut which has a desired target weight and/or a desired shape, wherein the calculation of the cutting line includes an optimization process by means of which, in addition to determining the volume necessary for achieving the target weight after cutting, the cutting line is determined to be as close at a right angle as possible to the fibres of the tuna fish, and cutting along the calculated cutting line in a cutting step.
