Extract essential oil from plants by distillation.
Steam distillation is a process in which steam is used to separate a mixture of two or more substances with different boiling points.
To obtain essential oils, steam distillation is the reference technique, which consists of exploiting the steam generated by boiling water.
The steam then passes through the plant material present in the still, carrying with it the aromatic molecules of the plant cells.
These molecules are incredibly light, making them very volatile and easy to vaporize. The water vapor and volatile molecules then pass through a condenser and return to the liquid state.
Due to their composition, essential oils have a lower density than water and will naturally stay on top of aromatic water.
The latter is formed when the vapor returns to its liquid state, diffusing micro droplets of essential oil which create the unique aroma of the distilled plant.
The separation of the two fluids is simple using a simple decanting funnel since they are immiscible.
The products of distillation are pure essential oil and aromatic water also called hydrosol.
Far from being a simple waste, aromatic water is a valuable by-product of distillation.
This versatile liquid can be used for a variety of purposes, from ferrous water to facial toner and even as a powerful plant antiseptic.
Extract essential oil
Keep in mind that freshly distilled essential oils are not always fragrant because they must undergo a maturation period, which usually lasts several weeks.
During this period it is essential to let the oil rest so that it reaches its ideal aroma.
How to store essential oils
Due to their delicate nature, essential oils must be handled with great care, as they are vulnerable to rancidity and deterioration which can lead to the loss of their natural scent or even the development of harmful substances.
To preserve their integrity, it is essential to store them in dark glass containers, protected from direct exposure to light and heat.
Essential oils are concentrated and contain active molecules, some of which can have toxic effects.
For this reason, they should be used sparingly, in drops, seeking expert advice to avoid any potential damage.
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