The Learning Library
Explore the materials, language and practical thinking behind perfumery. Find a useful starting point, then follow your curiosity.
A practical route through the library. Take one step, make a record, then decide what to explore next.
Build the foundations
Get organised and learn to describe what you notice before building a bigger study.
Make the next study count
Ask a smaller question, keep an unchanged reference and record what the comparison supports.
Three connected ways to make sense of your materials.
Useful knowledge, one idea at a time
Browse by topic, search for a question or start with the essentials.
17 guides found · Clear filters
Use known retained masses to assess a proportional correction, check multiple overshoots, and recognise when a fresh study is the clearer option.
Intermediate · Read guide
Build a small comparison around one question, with clear sample records and observations you can explain.
Intermediate · Read guide
Read perfume colour changes in context, separating viewing conditions, material identity and possible chemistry from unsupported quality conclusions.
Intermediate · Read guide
Investigate crystals, haze and delayed deposits by tracing the exact material, solvent system and stage where the appearance changed.
Intermediate · Read guide
Compare ethanol, DPG and TEC through exact product identity, water, grade, study purpose and the evidence needed for a useful decision.
Intermediate · Read guideA troubleshooting route for checking records, material context and what an unclear appearance can tell you.
Intermediate · Read guide
Read assay, water, grade and typical properties without confusing a product specification with a lot result or a finished-use approval.
Intermediate · Read guide
Understand the octanol/water ratio, the logarithmic scale and the volume trap before using logP to compare perfumery materials.
Intermediate · Read guide
Separate the neutral molecule’s partition ratio from the distribution of all its forms, and learn what a pH-qualified logD entry actually tells you.
Intermediate · Read guide
Learn why an octanol/water ratio cannot specify a dilution solvent, and what evidence helps with crystals, mixed carriers and changing clarity.
Intermediate · Read guide
Use product-specific storage guidance, clear opening history and appropriate review instead of universal shelf-life or antioxidant rules.
Intermediate · Read guide
Separate resting, physical change, chemical reactions and perception without relying on a universal perfume-maturation timetable.
Intermediate · Read guide