Extraction Methods of Wheat

Historically, wheat was processed through manual techniques where grain was separated from the stalk using tools like sickles or scythes, followed by threshing and winnowing to remove the chaff. For centuries, traditional milling involved stone-grinding, where circulating stones crushed the grain into flour. To isolate specific components like starch and gluten, traditional methods such as the Martin process were used, which involved manually kneading wheat flour into a dough and washing it with water to separate the starch milk from the proteinaceous gluten mass.

Modern commercial extraction utilizes high-speed mechanized systems, starting with large-scale combine harvesters that cut and separate grain in the field. In the mill, steel roller mills have replaced stones to repetitively fracture the endosperm into fine particles. Recent technological advancements include the use of three-phase decanters and hydrocyclone systems to efficiently separate starch and gluten from flour slurries. Furthermore, advanced sifting and "bolting" processes allow for precise flour extraction rates, often removing the bran and germ to create white flour with improved shelf life and baking functionality.

The Wheat note, valued for its warm, dry, and comforting grain aroma, often lends a pastoral, earthy texture to modern fragrances, particularly within the gourmand and oriental categories. One notable use is in **Champs-Élysées** by Guerlain, where a delicate wheat accord contributes to the soft, sunny, and slightly powdery floral composition, evoking a bright, natural freshness that moves beyond conventional citrus openings.

• Another significant example is **Bois Farine** by L'Artisan Parfumeur, a fragrance famous for its unusual, photorealistic depiction of flour and baked goods.

In niche perfumery, where the goal is often to capture abstract or photorealistic natural textures, the Wheat note becomes a central focus. It is utilized to simulate the scent of sun-drenched hay or toasted cereal, providing a unique backdrop. For instance, the note is subtly woven into fragrances like **Jeux de Peau** by Serge Lutens, adding a milky, toasted element that enhances the scent’s complex gourmand character.

• The versatile note is also sometimes used in Fougère compositions to replace traditional hay notes, adding a modern, dry warmth.

Finally, the Wheat note provides stability and a grounding warmth in many contemporary compositions that aim for a sophisticated, 'skin-scent' feel. Its dry sweetness and subtle nuttiness, as seen in various artisanal blends, ensures longevity and smooth blending with woodsy or amber bases, making it essential for creating complex, comforting, and memorable olfactory experiences.

Seasonality of Wheat

• The wheat harvest season primarily falls between May and September in the Northern Hemisphere and between November and January in the Southern Hemisphere, though exact timing depends on region, climate, and planting time
• Winter wheat is typically sown in the autumn, overwinters in a vegetative phase, and is harvested during the summer or early autumn of the following year
• Spring wheat is planted in the spring and harvested at the end of summer or early autumn, typically around August or September
• In perfumery, wheat is celebrated as a quintessential autumn note, valued for its ability to provide a dry, sun-baked warmth and comforting texture that evokes the transition from late summer harvest to the cooler months