In our previous article “Things You May Not Know About Essential Oils Extraction“, we talked at length about Steam Distillation. As promised, this article is going to cover the remaining 3 common extraction methods.
Absolute Oil Extraction (also know as Solvent Extraction)
As previously mentioned, a proper, stringent and thorough distillation process can be very costly and time consuming, just to get that small amount of concentrated essential oils. Some unethical merchants may choose to short-circuit the process and one of the methods is Absolute Oil Extract (or Solvent Extraction).
Solvents would be placed on plant matter to draw out the oil and then would be cleaned with alcohol. This method is usually used for those delicate flowers or plants that would not readily give up their oils, e.g. Jasmine. While it is easy to add in solvent, it is difficult to separate them after that.
Cold Pressing (also known as Expression)
It is always mistaken that lemon essential oil is the same as lemon juice. Lemon oil and other citrus oils are extracted from the rind of the fruit (the white side of the peel).
This is done by pressing the oils out in a machine. The resulting liquid is then put into a centrifuge and spun at very fast speed to further separate off any contaminating water or extra products contained in the mix.
Have you ever wondered why are the oils extracted from the rind and not the pulp. From scientific perspective, the rind has a high concentration of d-limonene but from Chinese Yin-Yang Concept, the rind contains the most Yang energies of the entire fruit while the pulp contains the Yin energies.
This method consists of incising the outer layers of a tree in order to collect the sap or resin. The resin circulates throughout a tree, and serves to seal damage to the tree.
This is usually used for very sturdy trees like Bosweilla or Frankincense. Now, why the resin from the bark and not the leaves? From Yin-Yang concept, it’s still the same, we are tapping from the part with the most Yang energies.
Before You Buy Your Next Bottle of Essential Oil
So isn’t it true that, before you decide to buy any essential oil, you ought to find out how the oil is actually being extracted and whether it has gone through the stringent and rigorous process & quality controls, from the time the seed is sourced to the time the oil is sealed in the bottle. In this way, you’ll have a peace of mind and feeling assured of the purity, authenticity and therapeutic qualities of the essential oils exactly the way nature intended.
That’s all for now! Stay tuned for our next article on the the various ways we could use essential oils.
Read our earlier articles on Essential Oils:
Feel free to drop us a note if there is any specific topics about essential oils you would like us to cover. Thank you and grateful!