Category Examples Approximate Shelf Life Citrus Oils Lemon, Orange, Grapefruit 1 to 2 years Middle Notes Lavender, Geranium, Tea Tree 2 to 3 years Base Notes Sandalwood, Cedarwood, Patchouli 4 to 8 years. Factors That Influence Shelf Life The primary determinant of an essential oil’s longevity is its chemical profile.
Testing Freshness and Potency of Your Oils
Exposure to light, heat, and air are the main catalysts for degradation. It is also vital to minimize headspace in the bottle and ensure the cap is tightly sealed to limit oxygen exposure every time the bottle is opened.
Additionally, the quality of the initial distillation and the plant material used play significant roles in how robust the oil is over time. Category Examples Approximate Shelf Life Citrus Oils Lemon, Orange, Grapefruit 1 to 2 years Middle Notes Lavender, Geranium, Tea Tree 2 to 3 years Base Notes Sandalwood, Cedarwood, Patchouli 4 to 8 years Sp Signs of Degradation While individual oils vary, they can generally be categorized by their expected lifespan.
Testing Freshness and Potency of Essential Oil Batches
Storing them in a cool, dark place, such as a cupboard or refrigerator, slows down the oxidation process significantly. Oxidation, a chemical reaction with oxygen, alters the scent and therapeutic properties of the oil, often making it harsh or ineffective.
More About How long do essential oils last
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