How are essential oils extracted and who invented them? As the question Thank you!

The history of the manufacture of rose puree and rose oil is also a very important evolutionary process in the perfume industry, the earliest use of the ancient extraction method "fat suction (Enfleurage)" to extract rose oil, the practice is to use a large number of animal fats and oils using a special wooden frame layer by layer, over and over again to soften the fresh petals, until the oil is saturated with rose oil, and then through the solvent to extract the rose oil out, and finally become a rose balm for a kind of rose perfume, for which the rose oil is used.

Until the 16th century, the Persians invented the distillation method, to obtain a more pure essential oil, more exquisite aroma, making the precious rose essential oil becomes unparalleled, through the distillation method of extraction of essential oils by way of the creation of the Otto OTTO. Persian invention of the distillation method is used to this day, is still now the mainstream of the extraction method at the time of the epochal significance of the great significance.

3-4 tons of fresh roses can only distill 1 kilogram of essential oil, which makes rose oil the most expensive and precious essential oil.