In this video you will learn about organoleptic testing and an array of other tests that are used to ensure that the essential oils doTERRA distributes are certified pure. These tests verify that each batch of essential oils is correctly examined and free from contaminants. When doTERRA administers these tests, the company makes sure that their tests are managed by qualified and skilled individuals and specialized equipment and machinery. Because each oil is put through this intensive testing under professional care, only pure grade essential oils are distributed by doTERRA to provide maximum essential oil benefits to those who use them.