An essential oil can’t stay fresh without proper storage. It does not react well to changes in temperature, and since you’ve spent a considerable amount of money in it, you might as well look after it properly. Otherwise, you’ll lose its therapeutic benefits. Luckily, storage solutions for an essential oil are easy.
Since ultra-violet light affects the composition of the essential oil, make sure that you put it on a dark-colored glass. Dark amber is the most common shade of glass. However, you can also choose one that is violet, green, or blue. They offer the same level of protection.
Putting your essential oil on a dark glass does not mean you can expose it directly to the sun. While the glass helps screen the UV light, natural heat will still speed up the oxidation process. So, be sure to still keep it some place dark and cool.
Cap the glass tightly so as not to expose it to oxygen. If not, some of the chemicals will evaporate, especially if the oil is not 100% pure.
Essential oils are prone to oxidation under heat and temperature variations – especially citrus oils. The same is true for massage oils and carrier oils. To avoid this, you can store them in your refrigerator. Be careful not to set the temperature too cold, about 5 to 10 degrees Celsius is enough. In fact, it’s much better than storing your oils on the kitchen’s window ledge.
Citrus essential oils will not change under the prescribed temperature; however, Aniseed, Rose Otto, Fennel, and Star Anise may solidify. So, before you use any of them, allow them to sit for a few hours. This will return them to their normal form. For the Rose Otto, you can just hold it in your hands for a few minutes. Never put the oils under the sun in order to hasten the process. Let it the natural wax dissolve without exposing it to UV light.
In summer, when it’s especially hot, essential oils can be particularly vulnerable. Store them in the fridge and take them out about 12 hours before you use them. This way, they can adjust to the room temperature naturally. Give it a quick shake to ensure that the waxy particles are completely dissolved.
If you don’t have any space in your fridge, use a storage box instead. It’s good enough to keep some types of oil. You just have to keep in a place that has the least or no changes in temperature. You also have to remember that some oils are moderately volatile, so they will evaporate quickly if you don’t cap it tightly. Also, don’t leave them lying around after you use them. Put them back in the box.
Essential oils are flammable. Thus, do not leave them near fires, candles, cookers, or any other sources of ignition. Don’t forget to keep them away from children. The essential oil is not something they can play with.
Never keep undiluted oils into plastic bottles. Why? Most oils will eat into the material and start degrading the plastics. Diluted oils like lotions and massage oils might be stored in plastic since the concentration of essential oils is lowered through the mixture with the other components.