For centuries, preserving the integrity of essential oils has been a priority. In the 19th century, women commissioned jewelers to craft special bottles, recognizing that proper storage safeguards the therapeutic and aromatic properties of these precious oils.
Without proper storage, essential oils can degrade, losing their potency and even becoming contaminated. Citrus oils are particularly vulnerable, oxidizing and developing a sweet, off-putting fragrance as they deteriorate. This degradation diminishes their therapeutic value.
However, not all oils are created equal. Frankincense, sandalwood, patchouli, and myrrh, for example, can age gracefully, even improving over time. Ancient Egyptians utilized cedarwood and cinnamon oils to embalm bodies, a testament to their preservative qualities.
To maximize the lifespan of your essential oil collection, ranging from months to years, consider the following storage guidelines:
* **Choose the Right Bottle:** Dark amber, cobalt blue, or violet glass bottles offer superior protection. These colored bottles block harmful ultraviolet (UV) rays from sunlight, which can weaken essential oils. Avoid clear glass bottles, as they allow light to penetrate and cause degradation. Plastic bottles are also unsuitable, as the plastic can dissolve and contaminate the oil. Aluminum bottles can be used if the inner surface is lined.
* **Control Temperature and Light:** Store essential oils in a cool, dark place, away from direct sunlight and heat sources. Refrigeration can extend shelf life, but avoid freezing. While some oils may become cloudy at low temperatures, they generally return to their original state when warmed. Citrus oils might remain cloudy, but their therapeutic properties should remain intact.
* **Prevent Contamination:** Be mindful of contamination during use. Never touch the orifice reducer or the inside of the cap. Use separate pipettes for each oil to avoid cross-contamination. Discard pipettes after each use, as residual oil exposed to oxygen can contaminate the entire bottle upon re-insertion.
* **Seal Tightly:** Always ensure the bottle cap is tightly sealed to prevent evaporation, as essential oils are volatile compounds.
* **Cap Material Matters:** Avoid rubber droppers, as they can degrade and become gummy when exposed to concentrated essential oils.
By implementing these storage techniques, you can protect your investment and enjoy the full benefits of your treasured essential oils for years to come. While it may require a bit of extra effort and potentially some expense, the value of preserving the integrity of your oils makes it worthwhile.