I find this a fascinating note that could really be interesting here, and I'm planning on making it a heart in a perfume I'm working on. I have no idea how to build an accord for this highly toxic flower, could you guys help me out please?

IRIS Iris pallida • Iris germanica • Iris florentina • Orris Root Revered since antiquity, iris has held a place in perfumery, medicine, art, and symbolism for thousands of years. But there’s an important distinction between iris and orris. Iris generally refers to the plant and its flower, while orris refers to the rhizome—the underground stem commonly called “orris root.” The iris flower may be gorgeous, but most of the iris species prized in perfumery have flowers with little useful fragrance. The magic is underground. WHAT DOES ORRIS SMELL LIKE? Orris can be powdery, earthy, woody, violet-like, buttery, and almost cosmetic. High-quality material can have an incredibly soft, velvety character unlike almost anything else in perfumery. Two of its most important odorants are ionones and, especially, irones. Natural orris is commonly encountered as orris butter, produced by steam distilling aged rhizomes. Despite the name, it isn’t butter in the culinary sense. It becomes a waxy or buttery mass at room temperature because of its composition. Solvent extraction can instead produce orris concrete, giving the perfumer a different representation of the rhizome. Both can be extraordinarily expensive and highly prized. WHY DOES ORRIS HAVE TO AGE? Freshly harvested rhizomes don’t possess the beautiful orris character we associate with the finished material. After harvesting, the rhizomes are cleaned, dried, and traditionally aged for several years—often around 3–5 years. During this maturation, precursor compounds in the rhizome gradually break down and oxidize, leading to the formation of the intensely aromatic irones. In other words: Time creates the perfume. IONONES & IRONES Modern chemistry has allowed perfumers to reproduce many aspects of natural orris without relying entirely on an exceptionally expensive natural material. This brings us to two incredibly important families: Ionones and irones. Ionones are fundamental materials in modern perfumery and can create violet, woody, powdery, fruity, and orris-like effects.

Since it is unbearably hot outside this week, I figured we might as well embrace it. 😂 This week’s challenge is a little more abstract. Rather than recreating the smell of a flower, food, or traditional perfume structure, we are going to try to recreate a physical sensation through scent. THE CHALLENGE: CREATE STEAM Think about stepping into a hot steam room. The air is thick. Warm. Humid. Almost heavy. Moisture hangs in the air and collects on every surface. But what does steam actually smell like? Technically… not much. And that is exactly what makes this challenge interesting. Your job is to use aroma materials to create the illusion of hot, humid, expanding air. We aren’t necessarily trying to create a beautiful perfume. We are trying to manipulate how someone perceives what they are smelling. THE RULES You may use a maximum of 6 materials. Your accord must include: 💧 1 material for humidity or moisture 🔥 1 material for warmth 🪨 1 material for a mineral, earthy, or structural quality 💨 1 diffusive material to help create the feeling of expanding vapor 🧪 Up to 2 additional materials of your choice And there is one major restriction… 🚫 NO EUCALYPTUS, MINT, OR MENTHOL. We don’t want to make a “spa” accord. Those materials also introduce an immediate cooling sensation, while our goal is to communicate HEAT. WHAT ARE WE LEARNING? This exercise is about olfactory temperature, texture, and atmosphere. Perfumery isn’t always about making something smell literally like an object. Sometimes we use materials to suggest things that don’t actually have a distinct aroma at all. Can something smell wet? Can something smell hot? Can something smell dense? Can something smell like it is floating through the air? These are all perceptions we can manipulate through composition. 🔥 BONUS CHALLENGE Try creating your steam accord without using a traditional aquatic material. Post your formula below and tell us what each material is doing in your composition! There is no single correct interpretation. I want to see how differently everyone translates the sensation of STEAM into scent. ♨️🧪

This week, we’re tackling another one of the foundational structures of classical perfumery: the Chypre! The classic Chypre is built around a beautiful contrast: a bright citrus opening against a dark, earthy, mossy base. For this challenge, we’re going to work with the traditional Chypre backbone and see how much character you can create with only 5 materials. THE CHALLENGE Create a 5-material Chypre accord using: 1. Bergamot 2. Labdanum 3. Oakmoss 4. Patchouli 5. One material of your choice Bergamot, labdanum,patchouli, and oakmoss are mandatory. The remaining material are entirely up to you. THE GOAL The purpose of this exercise is to understand the architecture of a Chypre, not simply to make something that smells good. Pay attention to what each of the three pillars contributes. Bergamot provides brightness, freshness, and contrast. Labdanum adds warmth, resinous depth, and body. Oakmoss provides the characteristic dry, earthy, mossy foundation that helps define the Chypre structure. Your final material are where you get to give the accord its personality. Want to make it floral? Try a rose or jasmine material. Want something darker? Explore woods, leather, smoke, or spice. Want something fruity? See how a fruit material changes the character while maintaining the recognizable Chypre backbone. THINGS TO THINK ABOUT How much bergamot do you need to create enough contrast with the darker base? How much oakmoss can you introduce before it dominates? How do you use labdanum without allowing the composition to become simply an amber? What are your final two materials contributing to the structure? And most importantly: Can you give your Chypre a distinct personality while still keeping its classical structure recognizable? There is no single correct formula. Experiment with the proportions, evaluate your accord over time, and take notes on how the materials interact. When you’re finished, share your formula in the comments and tell us which two additional materials you chose and why!

This week’s challenge is all about formula architecture, balance, and understanding how much ratios can completely change an accord. We’re going to build one of the most important structures in classical perfumery: the Fougère. But there’s a catch. Everyone gets the exact same five materials, and you MUST use all five: 🌿 Lavender 🍋 Bergamot 🌹 Geranium 🌾 Coumarin 🌳 Oakmoss THE RULES 1.) You may ONLY use these five materials. 2.) All five materials must appear somewhere in your formula. 3.) You may use whatever proportions you want. 4.) Your goal is to create a balanced and recognizable fougère accord. That’s it! Before you start mixing, think about what each material contributes. Which one should form the backbone? Which materials provide lift? Which provide depth? How much coumarin is enough before the accord becomes too sweet? How much oakmoss can you use before it becomes too heavy? The interesting part of this challenge is that we are all starting with exactly the same palette. The only thing separating one person’s fougère from another is how you choose to balance those five materials. Once you’re finished, post your 100-part formula in the comments and tell us a little about your thought process. Then take a look at everyone else’s formulas and see just how differently five identical materials can be interpreted. There is no single “correct” answer. Experiment. Smell. Adjust. Learn. And most importantly, have fun with it! 🌿🧪