Six Steps to Purity
Step 1: The Plant and Location
Step 2: How it was Farmed
Step 3: Different Distilling Methods
- Steam: Steam passes through the plant material (leaves, grass, roots, etc.), causing them to release their aromatic components. The steam is then condensed and the essential oil is extracted.
- Water (hydro): The plant materials (normally bark, wood, or harder compounds) are submerged in water to make a “soup.” As they are heated, they release their aromatic components into the steam which is then condensed and the essential oil is extracted.
- Steam/Water: Indirect steam is applied to the plant material (normally leaves), while water sits underneath the plant material.
- Expression: Plant materials (generally citrus rinds) are pressed by machines to squeeze out oils. Also known as “cold-pressed.”
Step 4: Packing and StorageAll oils should be stored in dark bottles as essential oils are light sensitive. Two common options are aluminum containers or amber glass bottles.
The oils should also be stored in temperature-controlled environments for optimal preservation. Exposure to heat can cause the oils to expire much faster. When stored properly, citrus oils last approximately 1-2 years, while all other kinds of oils can last 2+ years. You wouldn’t want to use an oil that has expired and lost its therapeutic benefits.
Step 5: TestedI like to say, “I’ll believe it when I see it,”
and I frequently apply this philosophy when testing the purity of essential oils. The type of testing oils undergo to examine purity is called gas chromatography and mass spectrometry- GC/MS for short. GC/MS testing breaks down the essential oil to reveal each of its unique chemical components. A trained aromatherapist then compares those amounts to the components in a standardized chemical composition for that oil to test if it truly is 100% pure. GC/MS testing will reveal if anything has been added or removed from the oil.
That is how we at Simply Earth make sure our oils truly are 100% pure and untarnished.