Manufacturing Process Phase A: Combine all ingredients of phase A and stir until completely dissolved. Phase B: Prepare phase B and separately heat phase A and phase B to 80 °C. Add phase B to phase A while stirring. Phase C+D: Add phase C and D below 40 °C. Adjust pH to 5.5 +_ 0.05. Specification Appearance: Slightly yellowish cream pH: 5.5 +_ 0.05 Stability: Microbiological stability proven, nohas not