1.Fire:the firepower is soft,hot but not dry, and the penetration is strong.The inferior wormwood has dry and hot firepower,poor permeability and weak moxibustion effect. 2.Moxa Ash: It is easy to be flammable, the combustion is balanced and does not extinguish.After combustion, it is still a whole without scattering and falling ash.The color is gray white. 3.Paper: High purity moxa roll are made of moxa wool which are rolled by white cotton paper/Moxa leaf paper/Grey cotton paper. The paper is light and thin,and the smell is elegant when buring.