Yields from Raw Materials

The average yield of essential oil from raw material is 1.4 per cent, which means that about 70 kg of plant material is required to produce 1 kg of essential oil. 160 kg of lavender blossoms are required to produce 1 kg of essential oil. As much as 4000 kg of rose petals are needed to produce 1 kg of rose oil. That means a yield of only 0.025 per cent, which explains why rose oil is considered so precious.

Essential oils are fragrant and highly volatile thus they evaporate readily. They are not greasy—quite different from fatty oils—and have a consistency much more like water than oil.