Essential oils are known to have a short shelf life, which has become a characteristic of essential oils. After all, they are pure plant extract and no preservatives can be added, so it is natural that they will decay slowly under natural conditions.
It is only when a bottle of essential oil has been used for two or three years that you are surprised and wonder if you have bought a fake.
Although the shelf life is short, it can guarantee that the essential oil is completely used up within this period of time. However, the real situation is that the essential oil has already broken down before it is used up. Why is this?
In fact, it has to do with the little habits you have with essential oils.
1. The cap of essential oil bottle is not tight
Essential oil is volatile, so to avoid oxidation and rapid volatilization of essential oil, the essential oil bottle cap must be tightened after use. And as far as possible to reduce the number of open, avoid pollution and oxidation, resulting in quality decline.
At the same time, do not change the bottle caps of different essential oils, or mix the same straw. The oil bottle with plastic dropper is not suitable for long time storage, because the essential oil will corrode the dropper and cause the oil to be contaminated.
2. Leave essential oils lying around
Essential oils must avoid exposure to sunlight and strong light. Sunlight is the most likely to make essential oils deteriorate, so it is necessary to absolutely avoid sunlight. Do not place essential oils in direct sunlight or sunlight. Do not expose the essential oil under the light, the temperature and intensity of the light is also likely to make essential oil deterioration.
If you can, you can store the oil in a wood box, such as sandalwood or pine.
3. Refrigerate essential oils
Avoid high temperatures for essential oils, but that doesn't mean they should be refrigerated. A lot of people think about putting it in the fridge, which is actually very wrong.
Essential oil storage temperature is room temperature 18-27 degrees, the best temperature is about 25 degrees. Therefore, the low temperature and humid environment of refrigerator is not suitable for the preservation of essential oils. Moreover, temperature difference also accelerates the deterioration of essential oil quality. In comparison, wood oil boxes are an excellent choice.
4. Smear the top of the bottle often by hand
The nature of essential oil is easy to oxidize, which determines that it can not be interfered with too much outside. If you want to preserve your essential oil and use it for a long time, you must not directly touch the mouth of the bottle when mixing the essential oil.
The shelf life of single essential oil is related to the purity of essential oil. If it is marked with 100% pure single essential oil, the shelf life is quite long, basically about 3 to 5 years without opening, and the shelf life of pure single essential oil is almost the same.
If it is opened, it should take about two years, if you have done enough preservation work.