Essential oils are popular alternatives to conventional medications, and they can help soothe a variety of ailments. However, like other natural products that are exposed to oxygen and light, essential oils can begin to go bad, affecting their potency and smell.
Most oils are sold in amber glass to prevent oxidation, so keep them in these containers to extend their shelf life and enjoy their full benefits for longer. Also, consider storing your oils in a dark cabinet or closet to minimize the time they are exposed to light and air.
Oxidation is a natural, unavoidable process that occurs when certain chemicals in the oil break down, explains Robert Tisserand, aromatherapy expert and founder of the Tisserand Institute. It’s a process that affects all natural products, including food and wine, but it can be especially damaging to essential oils, which are made from plant extracts.
Some oils like tea tree, lavender and patchouli become more prone to oxidation than others. This can result in an unpleasant aroma and lessen their therapeutic properties, says Elisabeth Anderson, director of science communication at the Center for Research on Ingredient Safety at Michigan State University.
Expired or oxidized essential oils are not safe to use, and can lead to irritation of the skin, mucous membranes or other body parts. This can cause rashes, burns, peeling or other unwanted side effects.
Aside from these dangers, oxidation can also degrade the scent and fragrance of essential oils. It can make them less effective and irritating when applied to the skin or diffused into the air, which can be dangerous if they are used near sensitive areas like the eyes and nose.
This is why it’s important to only purchase pure essential oils. You should also be aware that there are many bargain oils on the market that are not truly pure. They are often diluted with cheaper oils from nuts or seeds that are not distilled or pressed from plants, and they can spoil very quickly.
The best way to protect your essential oils is to store them in a dark-colored bottle with a tight-fitting lid. If possible, keep the bottle in a refrigerator to prevent exposure to oxygen and other elements that can accelerate oxidation.
If you must keep an essential oil in the kitchen, Tisserand suggests placing it in a small dedicated refrigerator. You may also be able to place it in a container with an airtight lid, if you’re not worried about sunlight or heat, which can accelerate oxidation.
Ultimately, the best way to prolong the life of your essential oils is to store them properly and use them frequently. By following these guidelines, you can enjoy the best possible benefits for your health and home. Using essential oils in your daily routine can improve your mood and health, so be sure to stick with the best quality!
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