Katrina Rosales
Distillation is an ancient technique used to capture the essence of flowers and plants for perfumery. The process involves placing flowers and plants in a large steel tank called a still, adding water, and heating the mixture to capture the aroma. The steam rises through a pipe and cools, forming condensation that is collected as floral water. This water is then separated from the essential oil, which can be used as a perfume or blended with other scents. While distillation is a popular method, other techniques such as enfleurage, expression, and extraction are also used to obtain odorous molecules from flowers and plants.
How to Distill Flowers for Perfume:
| Characteristics | Values |
|---|---|
| Definition | Distillation is an extraction process used in perfumery to capture essential oils from flowers or plants using water vapour. |
| History | The technique was invented in ancient times, possibly by the Greeks. It was further improved in the Middle Ages and perfected during Arab civilisation from the 8th century onwards. |
| Equipment | A still (a large tank topped by a long curved pipe) is used for distillation. |
| Process | Flowers, plants, bark, or roots are placed in the still with water, heated, and the steam is collected as it cools to obtain floral water. This is then decanted to separate the essential oil. |
| Examples | Rose, orange blossom, petit grain, and bergamot are commonly distilled for perfumery. |
| Other Techniques | Enfleurage, expression, and solvent extraction can also be used to extract scents from flowers. |
| Carrier Oils | Babassu oil, coconut oil, grapeseed oil, sweet almond oil, peach kernel oil, and jojoba oil are commonly used as carrier oils in enfleurage. |
| Notes | Perfumes typically have top notes (bright and light scents), middle notes, and base notes (deep and strong scents). |
| Natural vs. Synthetic | Most commercial perfumes use synthetic materials, but natural flower and plant extracts are also used, including essential oils and absolutes. |
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What You'll Learn
The distillation technique
Distillation is one of the most popular techniques used in perfumery to capture the essence of flowers, plants, barks, seeds, and even some roots. It is a very old process that was likely discovered by the ancient Greeks and later improved by the Persians, who used it for roses. The process involves using a still, derived from the ancient Greek word "ambix", which means "vase". A still is a large tank topped by a long, curved pipe.
To begin the distillation process, place the desired plants or flowers in the still, adding between 5 and 10 times the same volume of water. The amount of water added depends on the flowers, plants, bark, or roots being distilled. The mixture is then heated, causing the steam to trap the fragrance of the plants. The steam rises through the pipe and cools, forming condensation, which is collected and known as floral water.
The floral water is then decanted to separate and recover the essential oil. This oil is what carries the scent of the flowers or plants used in the distillation process. The type of flower or plant used will determine the fragrance and notes of the resulting perfume. For example, rose water or orange blossom water are commonly used in perfumery and are added at the end of the process instead of distilled water.
Distillation is a versatile technique that can capture the aroma of various raw materials. However, it is not suitable for all flowers or plants. For instance, jasmine and tuberose cannot be treated by hydrodistillation and instead require volatile solvent extraction to extract their scents. Other techniques such as enfleurage, expression, and extraction are also used in perfumery to obtain odorous molecules from plants.
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Choosing flowers
When choosing flowers, it is also crucial to determine whether they are suitable for the extraction method you plan to use. For example, some flowers, like jasmine and tuberose, are not compatible with hydrodistillation and instead require volatile solvent extraction to capture their scent. Additionally, certain flowers, such as lilac and lily, may not be available as essential oils, necessitating alternative extraction methods like enfleurage.
The strength of the flowers' scent is another factor to consider when making your selection. Some flowers have a more potent fragrance than others, and this can impact the intensity of your final perfume. If you are looking for a strong scent, opt for flowers with a powerful aroma that can "fill the room" with their fragrance. However, keep in mind that even flowers with a milder scent can be used effectively by repeating the extraction process multiple times to increase the scent's intensity.
It is also worth noting that fresh flowers are typically preferred over dried flowers in perfumery, as their scent is more vibrant and easier to extract. When picking flowers, it is best to choose ones that are in full bloom and at their peak fragrance. This ensures that you capture the most intense and true scent of the flower.
Lastly, consider the colour and appearance of the flowers, especially if you plan to sell your perfume commercially. The aesthetic appeal of the flowers used can enhance the overall presentation of your final product. Vibrant and colourful flowers may add a visually pleasing touch to your perfume, making it more inviting and attractive to potential customers.
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Extraction methods
Distillation is one of the most common extraction methods used in perfumery. It involves capturing the essential oils from flowers or plants using water vapour. To do this, plants are placed in a large steel tank topped with serpentine pipes, known as a still, and then water is added. The amount of water added varies depending on the flowers, plants, bark or roots being distilled. The mixture is then heated, causing the steam to trap the fragrance of the plants and rise up the pipe. As it cools, it forms condensation, which is then collected. This is known as floral water and can be used to create perfumes with a fresh and light scent.
Another method of extraction is enfleurage, which involves extracting the aroma of flowers into a usable oil base. This can be done using a carrier oil such as babassu oil or coconut oil. Flower petals are covered in oil and left in a warm place for 12-24 hours, with the petals being replaced every day until the desired fragrance level is achieved.
Solvent extraction is another technique, which uses carbon dioxide in a supercritical state to extract the essential oils from the product. This method is environmentally friendly and can reproduce the scent of raw materials very accurately.
Other methods of extraction include expression, which involves pressing the leaves to release the oils, and extraction using a solvent to draw the oils out.
When creating perfumes, it is also common to combine synthetic materials with natural flower and plant extracts in the form of essential oils or absolutes. Absolutes are more expensive and are highly concentrated forms of the scent of a particular flower, plant or fruit.
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Mixing and blending
When blending scents, it is important to consider the different notes that make up a perfume. A typical fragrance is composed of three layers: top notes, middle notes, and base notes. The top note is the initial scent that fades quickly and is usually a bright, light, or citrusy fragrance. Middle notes form the heart of the perfume and emerge once the top notes fade. Base notes are the deepest scents that emerge last and linger on the skin.
To create a balanced and harmonious blend, it is important to combine different notes in a way that complements each other. This may involve using a high note, such as a floral scent, along with a middle note and a low note. For example, a blend could combine a floral top note of rose or orange blossom with a middle note of vanilla and a base note of musk.
The choice of ingredients and their proportions will depend on the desired fragrance profile. Perfumers may experiment with different combinations of flowers, herbs, spices, and other fragrant materials to create unique scents. They may also use essential oils or absolutes, which are concentrated forms of a particular scent, to enhance or modify their blends.
In addition to natural ingredients, perfumers may also incorporate synthetic materials. These synthetic compounds can mimic natural scents and offer advantages such as lower cost and easier sourcing. However, it is important to ensure that all ingredients, whether natural or synthetic, are suitable for skin contact and perfume-making applications.
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Storing your perfume
Firstly, it is important to store your perfume in a cool, dark place. This will help to preserve its freshness. Avoid exposing your perfume to direct sunlight, as this can damage the fragrance. Dark glass bottles are ideal for protecting your perfume from light.
Secondly, excessive movement can increase your scent's exposure to oxygen, leading to oxidisation. Therefore, it is best to avoid shaking the bottle or moving it unnecessarily. In addition, try to minimise the amount of time the bottle is open, as exposure to air can also cause the perfume to break down.
Thirdly, the temperature at which you store your perfume is important. While it is generally recommended to keep perfume in a cool place, extreme cold can also be detrimental. The low temperatures of fridges can 'shock' fragrances, damaging their scent molecules and reducing their intensity. Therefore, unless you live in an extremely hot climate, it is not necessary to store your perfume in the fridge.
Finally, it is important to use and enjoy your perfume regularly. Perfume does have a shelf life, so be sure to make the most of your creation while it is at its best.
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Frequently asked questions
Distillation is an ancient technique used to capture the essential oils from flowers and plants using water vapour.
You will need a still, which is a large tank topped by a long curved pipe.
Plants are placed in the still with water, heated, and the steam rises through the pipe where it cools and forms condensation. This is then collected and decanted to separate the essential oil.
Flowers such as rose, jasmine, and orange blossom are commonly used for distillation.
Yes, alternative methods include enfleurage, expression, and extraction. Enfleurage involves extracting the aroma of flowers into a usable oil base. Expression involves pressing the leaves to extract the oil. Extraction uses a solvent to draw out the oil.
