Last, but certainly not least is the extraction method of expeller pressing. This is really good for squeezing the essence out of rind fruits such as oranges, lemons, grapefruit, tangerines, etc. It is a tried and true method and has been used for thousands of years. One way that this was done by hand, was to peal the fruit. The rind was then squeezed to render a small amount of essence and juice. After a while, the essence floats to the top and then it’s skimmed off. Obviously, this is quite a laborious task. It is amazing citrus essential oils are not more expensive than they are! Today there are machine methods of doing this, however, the highest quality oils are still hand-made.
You can do the hand-made version in your own kitchen if you like. Simply buy a new garlic press and place citrus rinds of one type of fruit in there and press. You must make sure that the fruit is organic and not been sprayed with pesticides, dyed or coated.
Let me know your results with your home-made expressed essential oils!