Antonio Mcgowan
Iris has been used in perfumery for centuries, dating back to ancient Egypt, where it was used to create a perfume called Kophia. The Greeks and Romans also used iris in their religious rituals and in the manufacture of perfumes. In the Middle Ages, it became popular in Europe, and in the 19th century, it was a key ingredient in high-end women's fragrances. Today, it is still widely used in perfumery, although synthetic compounds that mimic the aroma of iris oil are also common. The process of extracting and producing iris oil is time-consuming and labor-intensive, making it one of the most expensive raw materials in perfumery. The iris roots are carefully kept in the field for 4 to 5 years to develop the bulbs and then dried for another 3 to 6 years before the distillation process. The roots are then crushed, ground, and treated with solvents to extract the essence, which has a complex aroma that is often described as powdery, floral, earthy, and woody, with subtle undertones of spice or musk.
| Characteristics | Values |
|---|---|
| Iris species used in perfumes | Iris pallida |
| Types of iris used | Orris root, Iris pallida root |
| Odor profile | Earthy, woody, powdery, reminiscent of boiled carrot |
| Scent | Floral, slightly earthy, spicy, musky, raspberry, warm peppery, chocolate, metallic, cool, animalic |
| Pairings | Violet, white musk, amber, woody notes, resins, vanilla, tonka bean, amber, fruity notes, violet leaves, herbs, ambrette seeds, musk, leather, juniper berries, star anise, cloves, rose de Mai, incense, woods, vetiver |
| Extraction process | Solvent extraction, distillation |
| Time to harvest | 3-5 years |
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What You'll Learn
Iris perfume history
Iris perfume, also known as orris perfume, is a legendary and expensive ingredient in the world of perfumery. It is believed to have a positive effect on behaviour and its fragrance is necessarily impossible to describe in words. The process of extracting and producing iris oil is time-consuming and labour-intensive, making it one of the most expensive raw materials in perfumery.
The use of iris in perfumery dates back to ancient Egypt, where it was used to create a perfume called "Kophia" and to add fragrance to cosmetics, including kohl eyeliner. In ancient Greece, iris was known as "sea foam" and was a common ingredient in perfumes and medicines. During the Middle Ages, iris made its debut in Europe, becoming a favourite among the royalty. The 19th century marked the peak of its popularity in perfumery, with iris being included in many well-known perfumes of that era.
In the early 20th century, the perfume industry witnessed a boom, and iris became a precious ingredient in numerous elegant fragrances. The natural iris (iris root) has an earthy, woody, and powdery scent, with notes of violet, green leaves, and a hint of licorice. The fantasy iris note, on the other hand, is a powdery floral, reminiscent of the violet flower. The iris flower itself holds significance in Greek and Egyptian mythology. In Greek mythology, Iris was the messenger to the Gods, especially Zeus' wife, Hera, who adored her for always bringing good news. In Egyptian mythology, the iris flower was linked to the gods Osiris and Horus, and it is engraved on the foreheads of the Egyptian sphinxes to represent Horus.
To produce fine-quality iris fragrances, only one species is typically used, the Iris pallida. Freshly harvested orris roots do not possess the characteristic iris scent, so they are aged for at least three years before use. The roots are carefully kept in the field for 4 to 5 years to develop the bulbs, and then it takes another 3 to 6 years to dry the root bulbs before the distillation process. The aged powdered orris roots are used as a fixative in natural perfumes. The extraction process involves crushing and grinding the roots, followed by solvent extraction to produce iris root absolute. The waxy material obtained after solvent extraction is dissolved in ethyl alcohol, and the alcohol is then burned off to produce the precious perfume oil.
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Iris root extraction
Iris root, or orris root, is derived from the species Iris germanica and Iris pallida. The roots are carefully kept in the field for 4 to 5 years to develop the bulbs, and then it takes another 3 to 6 years to dry the bulbs before the distillation process. The roots are then crushed and ground to minimize particle size and break down some of the cell walls of the oil-containing glands.
Solvent extraction is the most common process to produce iris root absolute. The crushed orris roots are placed into a rotating drum and coated with solvents such as petroleum or benzene. The solvent dissolves the essence of the roots, leaving behind a waxy substance containing the oils. This waxy material is then collected and dissolved in ethyl alcohol, which is then burned off to produce perfume oil.
The iris root itself has a complex aroma, with notes of violet, green leaves, and hints of licorice. The scent is earthy, woody, and powdery, with subtle undertones of spice or musk. It is often described as reminiscent of boiled carrots or sea foam.
The process of extracting iris oil is time-consuming and labor-intensive, making iris one of the most expensive raw materials in perfumery. The long waiting period is justified by the unique and sophisticated aroma of the iris root.
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Iris scent notes
Iris is a beloved ingredient in perfumery with enticing floral notes. It is a staple in a variety of fragrances and products. The iris flower originated in Italy and Morocco but is now grown across Europe, Asia, and North America.
The iris root, also known as orris root, is used in perfumery. The roots are carefully kept on the field for 4 to 5 years to develop the bulbs, and then it takes another 3 to 6 years to dry the root bulbs before the actual distillation process. The aged roots are crushed and ground to break down the cell walls of the oil-containing glands. Solvent extraction is then used to produce iris root absolute. The waxy material left behind after the solvent dissolves the essence of the roots is dissolved in ethyl alcohol, which is then burned off to produce perfume oil.
The scent of iris is complex and multifaceted. It is described as having a soft, earthy, woody, and powdery scent with subtle undertones of spice or musk. It has notes of violet, green leaves, or a hint of licorice. The actual smell of iris is hard to describe in words, and it is said to match animal pheromones or the scent of a newborn baby's head. Iris can also smell raspberry with a warm peppery quality, lending a chocolate effect to the fragrance. It is often described as "metallic" and "cool", with a combination of woody and earthy notes, smelling fresh, delicately floral, and vaguely medicinal.
Iris is commonly used as a base note in perfumes due to its fixative properties, which help to prolong the life of other fragrances in a blend. It is versatile and can be paired with various notes depending on the desired effect. For a crisp and clean fragrance, it can be combined with fresh green notes and citrus. When paired with musk, amber, and vanilla, it conveys a warm and sensual essence. In feminine fragrances, it is often paired with flowers, resins, vanilla, tonka bean, amber, and fruity notes. In masculine fragrances, it is combined with violet leaves, herbs, and animalic notes. Iris has also been successfully paired with ambrette seeds and musks to create a soft, skin-like appeal.
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Iris fragrance combinations
Iris is a versatile fragrance ingredient that can be combined with various notes to create different olfactory profiles. Here are some common and unique iris fragrance combinations:
Powdery Accords
Iris is often used in powdery fragrances, blended with notes like vanilla, amber, musk, or tonka bean. These combinations create a soft, velvety, and slightly comforting sensation. The perfume Shalimar by Maison Guerlain is a classic example of this, where iris is combined with vanilla, incense, and citrus notes.
Floral Combinations
As a floral fragrance itself, iris enhances other floral notes when combined with flowers like rose, violet, or jasmine. This creates elegant and sophisticated floral arrangements. Infusion d'Iris by Prada is a light and elegant composition that combines iris with mandarin and neroli for a soft and refined scent.
Woody Accords
Iris also blends well with woody notes such as cedar, sandalwood, or vetiver, adding depth and warmth to the fragrance. Chanel 31 Rue Cambon is a woody and spicy fragrance with a hint of sweetness.
Leather Accords
For a bold and elegant fragrance, iris can be combined with leather, tobacco, or resin notes.
Gourmet Accords
Iris can even be used in gourmet compositions, adding a sweet twist when combined with notes like cocoa, caramel, or praline.
Citrus and Green Notes
When paired with fresh green notes and citrus, iris takes on a crisp and clean character, often associated with aromatic or green fragrance families.
Musk, Amber, and Vanilla
Combining iris with musk, amber, and vanilla creates a warm and sensual essence, characteristic of the amber fragrance family. Iris Poudre by Frédéric Malle is an example of this combination, with its soft and powdery interpretation of iris, enhanced by violet and vanilla notes.
The versatility of iris allows perfumers to create a wide range of scents, from elegant and floral to bold and sensual fragrances.
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Iris perfume production
The first step in iris perfume production is the selection and planting of iris bulbs or rhizomes. This process typically occurs in the fall, ensuring well-drained and sunny soil conditions. During the growth phase, regular yet moderate watering is essential to maintain optimal moisture levels. With proper care, colorful iris flowers will bloom in the spring, followed by the crucial step of cutting back faded stems to encourage new growth.
After a comprehensive harvesting process, the petals are meticulously sorted to retain the highest quality. The selected roots are then aged for at least three years, allowing the development of high levels of irones, which are odor molecules responsible for the characteristic iris scent. During this maturation period, the roots are carefully dried and left undisturbed for several years, transforming their fragrance and preparing them for the subsequent steps.
The aged roots undergo a meticulous process of crushing and grinding to minimize particle size and break down cell walls, releasing the precious oils within. Solvent extraction is then employed, where the crushed roots are coated with solvents such as petroleum or benzene. This process effectively dissolves the root essence, leaving behind a waxy substance rich in oils. The waxy material is then carefully collected and dissolved in ethyl alcohol, which is subsequently burned off to produce the pure perfume oil.
The resulting oil, known as orris butter, possesses a delicate, sweet, floral, and woody fragrance. It is highly sought-after in perfumery due to its versatility and ability to enhance a wide range of scent profiles. The complex distillation and extraction techniques involved in iris perfume production contribute to its reputation as one of the most expensive and luxurious raw materials in the fragrance industry.
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Frequently asked questions
The process of making iris perfume is time-consuming and labor-intensive. First, the iris roots are carefully kept on the field for 4 to 5 years to develop the bulbs. Then, it takes another 3 to 6 years to dry the root bulbs before the actual distillation process. The roots are then crushed and ground into a powder to minimize the particle size and to break down some of the cell walls of oil-containing glands. Solvent extraction is then used to produce iris root absolute. The crushed orris roots are placed into a rotating drum and then coated with solvents such as petroleum or benzene. The solvent dissolves the essence of the roots, leaving behind a waxy material bearing the oils. The waxy material is then collected and dissolved in ethyl alcohol, which is burned off to produce perfume oil.
There are two main types of iris utilized in perfumery: Orris root, derived from the Iris germanica, and Iris pallida root, derived from the Iris pallida. Of the two, Orris root is the most commonly used and considered the premium source of iris absolute. However, only one species is used in perfumes, Iris pallida, as freshly harvested orris roots do not hold the characteristics of iris scents.
The scent of iris is complex and can vary depending on the variation used. Overall, it is known for its powdery, floral, and slightly earthy scent with subtle undertones of spice or musk. It has notes of violet, green leaves, or a hint of licorice. It is also described as having a warm, peppery quality that lends a chocolate effect to the fragrance.
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