The emulsion process is a main method for cosmetic cream manufacturing. For each cream product, the emulsion process is different according to the product properties. Two types of emulsion processes are generally used for cosmetic cream production: oil in water and water in oil techniques. The oil in water process is most extensively used for cosmetic cream production. The reaction is carried out at 80 degrees C. After the reaction is completed, the mixture is cooled to 35 degrees C for the addition of additives to the mixture. The cooling step of a large quantity of cream produced takes a long time of more than 5 h. This slow cooling step limits the cream production cycle. A conventional method to cool the reactor is done by using air blowing from an electric fan, which does not significantly reduce the cooling time of the cream product. To reduce the cooling time while the product quality was controlled, the water cooling system to cream production process was investigated. A water chilling system was designed to produce 5 to 15 degrees C cooling water and the water flow rate could be controlled. The cooling jacket was designed to transfer heat from the cosmetic cream reactor to the cooling water system. The viscosity of the cosmetic cream was measured to verify the cream quality. The synthesis processes were carried out to find the optimal operating system. It was found that the optimal cooling condition of emulsion process was with 8 degrees C cooling water reducing the cooling time of cream product from 80 to 35 degrees C by more than half of the original time.