Plant matter refers to raw organic material that's either taken fresh from a plant or dried before use. Ground plant matter is the most common material used with GRAV products, and our bowls are designed to carry a typical serving. Plant matter is consumed by lighting its open surface area with a flame. As it combusts, the plant matter releases organic compounds that can be absorbed through the smoker's lungs.
Creating high-quality borosilicate glass since 2004. Advocates for the cannabis community, culture and causes.