1, oil color: Ying Ge Qingqinnan oil is dark in color, dark green, full, strong in oil feeling and light in luster, while Baiqinnan oil is light in color, light yellow-brown, with white fluff on the surface under the microscope.
2. Aroma: Green Qin 'an has a soft aroma, and a cool smell will overflow in the sweetness. Honey and flowers constantly meet in it, and then it will emit a touch of frankincense at the end of the rhyme, which makes people memorable, while Bai Qinan has a strong aroma. Therefore, Ying Ge Green Qin 'an is good.