Q.How Should I Store My Essential Oils Once I Have Purchased Them?
All oils are recommended to be stored around 68 degrees Fahrenheit (room temperature), and must be kept out of direct sunlight. Refrigeration after opening is best. Both essential and vegetable oils do not like extreme, or repeated changes in temperature, and when not in use should be stored in a cool dark place, away from direct sunlight and other sources of variation in temperature. Never leave oils in a place where the sun will shine directly on them – like in your car or on a window shelf in the bathroom, for example.
If you fail to remember this, your oils will begin to spoil much sooner than they should due to the action of them continually heating up and cooling down. Once the process of deterioration has begun it cannot be stopped, and like a chain-reaction it gathers speed according to the intricate balance of the oils chemical constituents.
This is why dark colored glass bottles are used to package essential oils, since they offer some protection to the oil from the sun’s harmful ultra-violet light. However, these simple house-keeping practices must still be observed if the bottles are to have any chance of doing their job properly. Leaving any oil, in any colored bottle, for any length of time in the sun is condemning it to an early death!
Here are some basic guidelines giving an indication as to the length of time a given oil should remain in good condition. Just remember these can only ever be basic guidelines and not firm, fixed periods after which the oil should be considered to have expired. There are simply too many variables for this to be considered an exact science.