Method for controlling the blowing process in a converter, wherein the time plot of the blowing process is controlled by determination of the temperature and carbon content of the metal bath as well as by waste gas analysis, wherein the temperature control of the metal bath is carried out continuously by a temperature sub-model in which the waste gas temperatures (T W (t)) measured before waste gas dust removal are combined with the actually measured metal bath temperature (T M (t inb)) to form a calculated metal bath temperature (T M (t)) and the thus-obtained temperature values are compared with the target value final temperature (T A (t f)) of the metal bath and logically linked with the control signals, which are calculated in a converter model, for the blowing, wherein for calculation of the metal bath temperatures (T M (t)) the actual metal bath temperature (T M (t inb)) acyclically determined by a sub-lance or manually at a time instant (t inb) is logically linked with the waste gas temperature (T w (t inb)) measured at this time instant and the continuously measured waste gas temperatures (T W (t)) by the following calculation process: a) calculating the constant temperature difference (ΔT) between the measured actual temperature of the metal bath (T M (t inb)) at the time instant (t inb) and the waste gas temperature ((T W (t inb)) measured at the same time instant by ΔT = T M t inb − T W t inb b) calculating the metal bath temperature (T M (t)) with inclusion of the measured waste gas temperature (T w (t inb)) and metal temperature (T M (t inb)) and the waste gas temperatures (T W (t)), which are continuously measured by the temperature sub-model, by T M t = T W t + ΔT c) continuous difference formation from the calculated metal bath temperature (T M (t)) and the target value final temperature (T A (t f)) ABS T A t f − T M t ≤ ΔT − parameter for determining the end of blowing, which is reached when the difference reaches a predetermined ΔT-parameter, for example ±10 K, and the desired carbon content (Caim) of the metal bath is also reached, wherein until reaching the intended temperature (T A (t f)) in dependence on the carbon content, which is measured at this time instant, of the metal bath - here the target value (Caim) is sought - the following further measures are carried out: - Caim is achieved and T A (t f) is not achieved further blowing - Caim is not achieved T A (t f) is not achieved further blowing - Caim is not achieved and T A (t f) is achieved further blowing (with appropriate cooling) - Caim is achieved and T A (t f) is achieved end of blowing a) calculating the constant temperature difference (ΔT) between the measured actual temperature of the metal bath (T M (t inb)) at the time instant (t inb) and the waste gas temperature ((T W (t inb)) measured at the same time instant by ΔT = T M t inb − T W t inb b) calculating the metal bath temperature (T M (t)) with inclusion of the measured waste gas temperature (T w (t inb)) and metal temperature (T M (t inb)) and the waste gas temperatures (T W (t)), which are continuously measured by the temperature sub-model, by T M t = T W t + ΔT c) continuous difference formation from the calculated metal bath temperature (T M (t)) and the target value final temperature (T A (t f)) ABS T A t f − T M t ≤ ΔT − parameter for determining the end of blowing, which is reached when the difference reaches a predetermined ΔT-parameter, for example ±10 K, and the desired carbon content (Caim) of the metal bath is also reached, wherein until reaching the intended temperature (T A (t f)) in dependence on the carbon content, which is measured at this time instant, of the metal bath - here the target value (Caim) is sought - the following further measures are carried out: - Caim is achieved and T A (t f) is not achieved further blowing - Caim is not achieved T A (t f) is not achieved further blowing - Caim is not achieved and T A (t f) is achieved further blowing (with appropriate cooling) - Caim is achieved and T A (t f) is achieved end of blowing