Essential oils are plant oils that are utilized as aromatherapy oils in a variety of industries, including the food and beverage, pharmaceutical, and cosmetic industries.
The Purity of The Material Determines Quality of Essential Oils.
The quality and purity of essential oils not only affect the therapeutic effect, aroma, color and taste, but also the price. The higher the quality and purity, the higher the price.
Some aspects of quality and essential purity can be measured olfactory which is very subjective, but some parameters can be measured quantitatively using instruments.