Gallon of buying DPG Solvent for Incense & Burning Oils

DPG (dipropylene glycol) is a liquid solvent used in preparing fragrance for use in incense buying and burning oil making. To prepare fragrance oils for incense/burning oil use: mix 1 part fragrance to 2 parts DPG. Gallons of DPG are sold by volume, not weight. However, a gallon contains approximately 8.5 pounds.