Seamus Hammond
Absolutes are highly aromatic, concentrated oily mixtures extracted from plants. They are used in perfumery and aromatherapy and are similar to essential oils. However, absolutes are produced through solvent extraction, whereas essential oils are usually produced by steam distillation. Absolutes are the most concentrated form of fragrance, which makes them very expensive. The scent of absolutes is stronger than essential oils, and they have a thicker consistency and an amber-like colour.
Characteristics of Absolute in Fragrance
| Characteristics | Values |
|---|---|
| Production Method | Solvent Extraction |
| Raw Material | Hydrocarbon Solvent |
| Product | Concrete |
| Process | The concrete is extracted with ethanol and cooled to solidify waxes. |
| Result | An oil (the absolute) is left behind when the ethanol evaporates. |
| Scent | Stronger than essential oils |
| Consistency | Thicker than essential oils |
| Color | Amber-like |
| Pricing | More expensive |
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What You'll Learn
Absolute oils are derived from plant material through solvent extraction
Absolute oils are derived from plant materials through solvent extraction. This is different from the typical essential oil extraction method, which is steam distillation. In solvent extraction, a solvent is combined with plant material. The solvent then draws out the oil, and the two are carefully separated. This process produces an oil with a stronger scent and thicker consistency than essential oils.
Solvent extraction is a more effective method for certain plant materials, such as flower petals. In some cases, steam distillation can be detrimental to delicate flowers, resulting in an undesirable aroma or lower quality oil. For example, roses do not have much essential oil in their petals, which is why it takes many roses to make a single drop of rose essential oil. With solvent extraction, however, more oil can be yielded, making it a more efficient process for certain plants.
The process of solvent extraction begins with plant material being extracted with a hydrocarbon solvent, such as hexane, to yield a substance called concrete. The concrete is then extracted with ethanol, and the ethanol extract is cooled to solidify waxes. It is then cold-filtered to yield a liquid extract. As the ethanol evaporates, an oil—the absolute—is left behind.
While steam distillation is the most common method for producing essential oils, it is not suitable for all types of plant materials. Some raw materials are too delicate or inert to be steam-distilled and can only yield their aroma through solvent extraction. This is why absolute oils tend to be used in perfumery, as they have a stronger scent. Absolute oils are also used in aromatherapy and DIY projects.
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Absolute oils are more concentrated than essential oils
Absolutes, or absolute oils, are highly concentrated aromatic mixtures extracted from plants. They are used in perfumery and aromatherapy. Absolutes are produced through solvent extraction, or more traditionally, through enfleurage. First, plant material is extracted with a hydrocarbon solvent, such as hexane, to yield concrete. The concrete is then extracted with ethanol. The ethanol extract is cooled (e.g., to −15 °C) to solidify waxes, and cold-filtered to yield a liquid extract. When the ethanol evaporates, an oil—the absolute—is left behind.
Essential oils, on the other hand, are typically produced through steam distillation. In this process, plant material is placed in a still with water, and heat is applied. As the water heats up, the plant material releases its essential oil. The oil rises with the steam droplets, which are then separated from the water.
Since solvent extraction is different from the typical essential oil extraction method of steam distillation, absolutes have a stronger scent than essential oils. Absolutes also have a thicker consistency and an amber colour, whereas essential oils have a lighter scent, watery consistency, and a light, clear colour.
The different extraction methods also affect the price of the oils. For example, rose essential oil is the most expensive essential oil on the market. However, when making rose absolute oil, solvent extraction yields more oil than steam distillation, making rose essential oil more expensive than rose absolute oil.
Absolutes are the most concentrated form of fragrance, which also makes them very expensive. They are often used as the top-billed super notes in fragrance compositions, providing a stronger scent with extra staying power.
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Absolute oils have a stronger scent than essential oils
Absolutes are highly concentrated, aromatic, oily mixtures extracted from plants. They are used in perfumery and aromatherapy. Absolutes are obtained through solvent extraction, a process that involves combining a solvent with plant material. The solvent draws out the oil from the plant material, and the two are then carefully separated. This method of extraction results in a highly concentrated aroma and a thicker consistency.
Essential oils, on the other hand, are typically produced through steam distillation, the most common method of extraction. In steam distillation, plant material is placed in a still with water, and heat is applied. As the water heats up, the plant releases its essential oil, which rises with the steam droplets and is collected through a pipe.
The key difference between absolute and essential oils lies in their methods of extraction. Solvent extraction yields a more concentrated and aromatic product, resulting in absolute oils having a stronger scent than essential oils. Absolute oils are thicker and have an amber-like colour, while essential oils have a lighter scent, a watery consistency, and a clear colour.
The process of solvent extraction for absolute oils is more complex and expensive, making absolute oils pricier than essential oils. The higher concentration and intensity of absolute oils make them ideal for perfumery, where they are often used as top notes or super notes to create long-lasting fragrances.
While both types of oils are derived from plant material, the different extraction methods result in distinct characteristics, with absolute oils offering a more potent and robust olfactory experience.
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Absolute oils are thicker in consistency than essential oils
Absolutes, or absolute oils, are a type of highly aromatic, concentrated oily mixture extracted from plants. They are used in perfumery and aromatherapy and are often the top-billed super notes in fragrance compositions. Absolutes are usually more expensive than essential oils.
Essential oils are typically produced through steam distillation, a process in which plant material is placed in a still with water, heated, and the resulting steam is condensed to collect the oil. Steam distillation produces volatile essential oils made up of smaller molecules, which may dissipate quickly when exposed to air.
On the other hand, absolutes are produced through solvent extraction, a process in which a solvent is combined with plant material to draw out the oil. This method yields oils with heavier molecules, resulting in a thicker consistency than that of essential oils. Certain molecules that naturally occur in plants are too large to be extracted through steam distillation, but they can be captured through solvent extraction, resulting in a more complete and concentrated fragrance.
The traditional method of extracting absolutes has been modified to use only bio-sourced and biodegradable solvents, allowing for the preservation of the top notes and the original smell of the living plant. This new process creates 100% natural ingredients with unique olfactory profiles.
In summary, absolute oils are thicker in consistency than essential oils due to the difference in extraction methods. While essential oils are typically produced through steam distillation, resulting in lighter, more volatile molecules, absolute oils are extracted through solvent extraction, yielding heavier molecules that give the oil a thicker consistency.
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Absolute oils are more expensive than essential oils
Firstly, absolute oils are derived from plant material through solvent extraction, a different method from the typical essential oil extraction process of steam distillation. This alternative extraction method results in a more concentrated and aromatic product, with a stronger scent. The concentration of absolutes makes them more expensive. The solvent extraction process involves combining a solvent with plant material to draw out the oil, which is then carefully separated. This technique is particularly suitable for certain plant materials, such as flower petals, that yield a higher concentration of oil.
Secondly, the difference in scent between absolute and essential oils influences their pricing. Absolute oils have a stronger, more intense fragrance compared to the lighter scent of essential oils. This enhanced aroma of absolutes contributes to their higher price point.
Additionally, the thicker consistency of absolute oils sets them apart from the watery consistency of essential oils. The variation in consistency is a result of the distinct extraction methods employed for each type of oil. The thicker texture of absolutes aligns with their higher concentration and more robust scent, further justifying their higher cost.
Lastly, absolute oils possess an amber-like colour, in contrast to the light, clear colour typically associated with essential oils. This colour difference is yet another factor that distinguishes absolute oils from essential oils in terms of both appearance and pricing.
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Frequently asked questions
Absolutes are the most concentrated form of fragrance, which makes them very expensive. They are derived from plant material through solvent extraction.
Essential oils are produced through steam distillation, boiling, or pressing, while absolutes are produced through solvent extraction. Absolutes have a stronger scent, thicker consistency, and amber-like colour, whereas essential oils have a lighter scent, watery consistency, and light, clear colour.
Some fragrances that contain absolutes include Atkinsons Triple Extract, which contains rose absolute, and Phlur's Apricot Privee EDP, which incorporates jasmine and basil absolutes.
