The reason why essential oil is called "liquid gold" is because its manufacturing process is very complicated, raw materials are not easy to obtain, can not be produced in large quantities, when plants are planted, can not be sprayed with pesticides, plants also have suitable areas for planting, the same plant in different areas

The oil refining needs a lot of plants, 200 kg of lavender can only be refined 1 kg of essential oil, 2 to 4 tons of roses only

It takes 3,000 lemons to extract 1 kilogram of essential oil. The cost of essential oil will be affected by crop failure or storage problems