Wine-making tank, featuring gas supply means for the supply of gases within the same tank, said tank being characterized in that it comprises: - air-tight sealing means, associated with the top of a cylindrical vessel with a vertical axis defining said tank; - pressure control means, adapted to define and maintain a predetermined pressure within said cylindrical vessel; - first gas adduction nozzles, associated to said gas supply means for the supply of gases, provided inside said cylindrical vessel and located close to the bottom of the latter; - second gas adduction nozzles, associated with said gas supply means for supply of gases, provided inside said cylindrical vessel and located at an intermediate height of the latter, said second gas adduction nozzles being adapted to insufflate inert gas and / or air intended to determine a micro-oxygenation of the liquid mass, without disturbing the solid parts; - third gas adduction nozzles, associated to said gas supply means for the supply of gases, provided inside said cylindrical vessel and located in the upper part of the latter, above the maximum level reached by the liquid contained therein, said third gas adduction nozzles being adapted to insufflate inert gas and / or air in the free upper volume of the cylindrical vessel, over the liquid mass, said gas being mixed appropriately in order to slow down or accelerate the process of oxidation of the must without causing any handling of the liquid mass; - power and control means, functionally connected to said pressure control means, first, second and third gas adduction nozzles (71, 72, 73), adapted to determine respective predetermined operative phases, in order to perform vinification processes with controlled oxidation. - air-tight sealing means, associated with the top of a cylindrical vessel with a vertical axis defining said tank; - pressure control means, adapted to define and maintain a predetermined pressure within said cylindrical vessel; - first gas adduction nozzles, associated to said gas supply means for the supply of gases, provided inside said cylindrical vessel and located close to the bottom of the latter; - second gas adduction nozzles, associated with said gas supply means for supply of gases, provided inside said cylindrical vessel and located at an intermediate height of the latter, said second gas adduction nozzles being adapted to insufflate inert gas and / or air intended to determine a micro-oxygenation of the liquid mass, without disturbing the solid parts; - third gas adduction nozzles, associated to said gas supply means for the supply of gases, provided inside said cylindrical vessel and located in the upper part of the latter, above the maximum level reached by the liquid contained therein, said third gas adduction nozzles being adapted to insufflate inert gas and / or air in the free upper volume of the cylindrical vessel, over the liquid mass, said gas being mixed appropriately in order to slow down or accelerate the process of oxidation of the must without causing any handling of the liquid mass; - power and control means, functionally connected to said pressure control means, first, second and third gas adduction nozzles (71, 72, 73), adapted to determine respective predetermined operative phases, in order to perform vinification processes with controlled oxidation.