How to store perfume so it keeps

A perfume has three enemies, in this order: light, heat and air. Ultraviolet radiation breaks the most fragile molecules, heat speeds up every reaction inside the bottle, and the oxygen that enters with each spray slowly oxidises the materials. Storing one properly is simple and needs nothing special: keep the bottle in its box, in the dark, somewhere with a steady temperature, away from the bathroom and the windowsill. Kept that way, an unopened perfume lasts for years, and one in use holds its character long past what a label might suggest. The opening suffers first: if an old bottle seems to have lost its beginning, the volatile notes have gone even though the heart and base are intact. A colour that deepens over time is normal and doesn't by itself mean the liquid has turned.

The three factors, one by one

• Light. Ultraviolet radiation is the most destructive and works straight through glass. A bottle left on a chest of drawers beside a window degrades visibly within months.
• Heat. Every rise in temperature accelerates the reactions in the liquid. A bathroom is the worst room in the house: high humidity and a swing of tens of degrees with every shower.
• Air. Oxygen enters with each spray and gradually oxidises the materials. It cannot be avoided, but it can be slowed: a nearly empty bottle holds far more air than a full one.

Where to keep it, concretely

A drawer, a cupboard, or the original box. The ideal temperature is that of an ordinary room, held steady, somewhere between fifteen and twenty-two degrees. A fridge isn't needed: the swings from taking it out and putting it back do more harm than good, and condensation doesn't help either.

Stand the bottle upright with the cap on. A cap left off lets air and evaporation work continuously. Don't decant into another container to fit a bag, either: every transfer means air and contamination.

How long it keeps

An unopened perfume, stored properly, holds its character for many years. Once opened, the usual reference is three to five years, but that is guidance rather than an expiry date: it depends on the composition. Citrus-rich formulas change faster, because citrus materials are among the most fragile. Those resting on woods, resins and balsams change very slowly, and some even round out.

The signs that a perfume has turned are olfactory, not visual: a sour or metallic opening, a note that reads like rancid oil, a character that no longer resembles what you knew. If you smell no difference, there most likely isn't one.

About colour

Many perfumes darken over time, and that is not a fault. Some materials colour naturally in alcohol, especially sweet and balsamic ones, and light accelerates it. A deeper shade after a year is no cause for concern. A cloudy liquid or visible sediment is a different matter and worth asking about.

ORYN's perfume comes in an opaque bottle, and the box is built to keep it away from light between wearings. The same care is printed on the insert inside that box, because we would rather not say one thing on a website and another on paper.

Travel and everyday

1. In luggage, keep the bottle in its box or wrapped, never loose among clothes. Not in a car boot in summer: it reaches temperatures at which any composition suffers.
2. At home, a bedroom drawer beats any bathroom shelf.
3. At a desk or in a bag, occasional exposure harms nothing. What matters is where the bottle spends the rest of its time.