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Essential oil processing - distilling oils: how was your oil processed:

July 27th, 2007    Subscribe To Our Feed

Essential oils are processed from plants: the leaves, roots, bark and seeds, using various processes. The process used can affect the quality of the oil, so if you’re using oils for therapeutic purposes you’ll want to know as much as you can about how the oil was processed.

The majority of essential oils available today are extracted using a steam distillation process. It’s the oldest form of essential oil extraction and is believed by many to be the only way oils should be extracted. The process really is quite simple and as long as this extraction process is closely monitored, the steam will remain at a temperature that won’t damage the plants.

The desired plant material is placed into a still. A still is a specialized piece of equipment that is used in the distillation process. It consists of a vessel into which heat is added and a device that is used for cooling. The plant is first placed into the vessel. Next steam is added and passed through the plant. The heat from the steam helps to open the pockets of the plant that contain the plant’s aromatic molecules or oils. Once open, the plant releases these aromatic molecules and in this state, the fragrant molecules are able to rise along with the steam.

The vapors carrying these molecules travel within a closed system towards the cooling device. Cold water is used to cool the vapors. As they cool, they condense and transform into a liquid state. The liquid is collected in a container and as with any type of oil/water mixture, it separates. The oils float towards the top while the water settles below. From there, it’s a simple matter of removing the oils that have been separated. These are the highly condensed, aromatic oils used in aromatherapy.

The water is not discarded, however. The water, which also contains the plant’s aroma along with the other parts of the plant that are water soluble, are the hydrosols - a milder form of the essential oils. These, too are also used in aromatherapy.

When steam is used, it’s created at a pressure higher than that of the atmosphere. The boiling point is above 100 degrees Celsius and creates an extraction process that is safe and fast. If the temperature is allowed to become too hot, however, the plant material as well as its essential oils can easily become damaged.

Water Distillation

Water distillation involves placing the desired plant material in a still and then submerging it in water. The water is then brought to a boil. The heat helps open the pockets containing the plant’s aromatic molecules so they can be extracted. The vapors cool and condense, the essential oils separate from the water and they’re collected.

The water in this case provides protection for the plant because it acts as a barrier. Less pressure is used as well as a lower temperature than that which is used in the steam distillation method. This extraction method works well with plants that cannot tolerate high heat.

Other distillation methods

Hydro distillation is similar to steam distillation. The only difference is that instead of introducing the heat from the bottom and up through the still, as happens in steam distillation, the heat passes into the still from the top. It’s cooled from below, which makes collection of the essential oils easier. This method actually results in a higher yield of essential oils because less steam and consequently less processing time are involved.

In a water/steam combination distillation method, plant material is submerged into heated water and steam is forced through the water, opening the pockets containing the aroma molecules. When cooled, the essential oils condense and are collected as described above.

If you’re not sure how a particular oil was processed, and are using oils to improve your health or for a medical condition, then ask the seller. If the seller doesn’t know, then buy your oils from another source.

Pure Essential Oils

June 6th, 2007    Subscribe To Our Feed

Pure essential oils usually need to be diluted before use via a carrier oil.

Pure therapeutic essential oils are not to be used internally and care must be taken to keep the pure therapeutic essential oils away from the eyes.  If this oil comes in contact with the eyes it is important to take immediate steps.  Those steps include using a comparable oil such as grape seed, vegetable or almond oil to flush the pure therapeutic essential oils from the eyes.  It is critical that the individual does not use water to flush the oils from their eyes.

Another precaution is that because of the strength of pure therapeutic essential oils it is important to not apply the oil at its full strength to the body.  Therefore, the oil should be mixed either with water, as in taking a bath, or with a neutral oil, carrier oil, when utilizing the essential oil during a massage process.  Also, it is important that the oil is not applied to any open sores or any particular part of the body that is in the process of healing

One additional precaution is that when applying pure essential oils to the skin the desired effect is the reality that the oils will begin to flush the system of unhealthy toxins.  Therefore, it is important to drink plenty of water to help with this purification of the body.

Proper Use Of Pure Therapeutic Essential Oils

In addition to the precautions associated with use of pure therapeutic essential oils there are certain steps that should be followed to ensure an optimum experience.  Those steps include maintaining the strength of the oil and using a minimum amount of pure therapeutic essential oils.

The first step in maintaining the strength of the pure therapeutic essential oils is proper storage.  Because exposure to heat and the sun will break down the strength of this product it is important that the oils are stored away from heat and direct sunlight.  Also, the oil should be stored in its original bottle which should be dark in color.

Finally, because the pure therapeutic essential oils are highly concentrated, a little will go along way.  Therefore, use as less of the essential oil as possible when allowing for its fragrance to be released or being used as part of massage therapy.

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