Disclosed herein are methods for producing liquid detergent products using a vessel comprising an inlet, an outlet, an agitation device, and an additive mixing zone disposed between the inlet and the outlet. The method comprises introducing an unstructured liquid detergent precursor into the inlet of the vessel; mixing an additive and the unstructured liquid detergent precursor in an additive mixing zone to form a combined additive detergent; adding a structurant to the combined additive detergent downstream of the additive mixing zone to form a liquid detergent product. The liquid detergent products may be used in a water-soluble pouch, for e.g., a multi-compartment water-soluble pouch.