There are several methods available used to extract essential oils. There are conventional and non-conventional methods with the latter being more efficient than the former. Currently at the Pharmacy department of the University of Zimbabwe there is no functional extraction machine. The ones that were used have worn out and thus have since been decommissioned. With this in mind, the present project sets out to solve this problem by coming up with a new system design that uses the subcritical water extraction method to extract essential oils faster and more efficiently as compared to the previously available steam distillation machine. The machine has a pressure tank which acts as the extraction vessel and the subcritical water is passed through the plant material inside the vessel. The temperature of the water inside is maintained at a specific temperature. The tank is pressurized using a pump and valves to maintain the pressure inside the extraction vessel. The products of the extraction process cooled and separated. The extraction tank and the pipes are analyzed using Autodesk Inventor to determine the safety of the design.