Method of producing a metal strip in a plant, comprising a continuous casting plant, a first furnace adjoining in conveying direction, a second furnace adjoining the first furnace in conveying direction and a rolling mill adjoining the second furnace in conveying direction, wherein the attainable temperature gradient (AT/At) of the first furnace is smaller than the attainable temperature gradient (ΔT/Δt) of the second furnace. characterised in that the method comprises the steps of: a) establishing a scope of production, which is to be effected, of metal slabs or metal strips during a defined production time period, comprising at least two different metal slabs or metal strips; b) determining the respective entry temperatures (T FM) into the rolling mill for at least a part - preferably all - metal slabs or metal strips, which are to be produced, of the defined production time period; c) determining an exit temperature (T AO1) from the first furnace, wherein this is selected to be smaller than the highest entry temperature (T FM), which is determined in step b), into the rolling mill and selected to be smaller than or substantially the same as the lowest entry temperature (T FM), which is determined in step b), into the rolling mill; d) operating the first furnace in such a manner that the metal slabs or metal strips to be produced leave the first furnace with the exit temperature (T AO1) determined in accordance with step c); and e) heating or reheating a metal slab, which is to be produced, or a metal strip, which is to be produced, by means of the second furnace to its requisite entry temperature (T FM) into the rolling mill insofar as this temperature lies above the exit temperature (T AO1), which was determined in accordance with step (d), of the first furnace, wherein the first furnace is operated so that the exit temperature (T AO1) of the metal slab or the metal strip is at most 1,125° C, wherein energy-saving, dry furnace rollers are used in the first furnace. a) establishing a scope of production, which is to be effected, of metal slabs or metal strips during a defined production time period, comprising at least two different metal slabs or metal strips; b) determining the respective entry temperatures (T FM) into the rolling mill for at least a part - preferably all - metal slabs or metal strips, which are to be produced, of the defined production time period; c) determining an exit temperature (T AO1) from the first furnace, wherein this is selected to be smaller than the highest entry temperature (T FM), which is determined in step b), into the rolling mill and selected to be smaller than or substantially the same as the lowest entry temperature (T FM), which is determined in step b), into the rolling mill; d) operating the first furnace in such a manner that the metal slabs or metal strips to be produced leave the first furnace with the exit temperature (T AO1) determined in accordance with step c); and e) heating or reheating a metal slab, which is to be produced, or a metal strip, which is to be produced, by means of the second furnace to its requisite entry temperature (T FM) into the rolling mill insofar as this temperature lies above the exit temperature (T AO1), which was determined in accordance with step (d), of the first furnace,