An inline control and measuring system connected to a continuous mixing process of a system comprising an extruder for mixing solid or viscous materials with liquids and/or solvents to form the paste or viscous materials, wherein the paste or viscous material is discharged through a supply line and at least one outlet of a plurality of outlets , characterized in that the system comprises a bypass line branching from the supply line for receiving a volume of the paste from the supply line , wherein the bypass line comprises a plurality of pipes and a plurality of sensors , in that the system comprises a controller in communication with the extruder and/or the plurality of sensors in the bypass line , wherein the controller (i) receives signals of at least one of the plurality of the sensors in the bypass line , (ii) determines product properties of the paste based on at least the sensor measurements of the sensors in the bypass line , (iii) discharges the paste through the at least one outlet of the plurality of outlets based on the determined product properties, and (iv) controls the extruder and/or the pressure valve , when the determined product properties of the paste are different from target product properties, and in that the plurality of outlets comprises a first outlet communicated with a production line , wherein the first quality paste is discharged through the first outlet by being fed to a next production step, a second outlet communicated with the extruder , wherein the second quality paste is discharged through the second outlet by being fed back to the continuous mixing process via the extruder , and a third outlet communicated with a waste tank , wherein the third quality paste is discharged through the third outlet and collected in the waste tank . in that the system comprises a bypass line branching from the supply line for receiving a volume of the paste from the supply line , wherein the bypass line comprises a plurality of pipes and a plurality of sensors , in that the system comprises a controller in communication with the extruder and/or the plurality of sensors in the bypass line , wherein the controller (i) receives signals of at least one of the plurality of the sensors in the bypass line , (ii) determines product properties of the paste based on at least the sensor measurements of the sensors in the bypass line , (iii) discharges the paste through the at least one outlet of the plurality of outlets based on the determined product properties, and (iv) controls the extruder and/or the pressure valve , when the determined product properties of the paste are different from target product properties, and in that the plurality of outlets comprises a first outlet communicated with a production line , wherein the first quality paste is discharged through the first outlet by being fed to a next production step, a second outlet communicated with the extruder , wherein the second quality paste is discharged through the second outlet by being fed back to the continuous mixing process via the extruder , and a third outlet communicated with a waste tank , wherein the third quality paste is discharged through the third outlet and collected in the waste tank . <EOS>