Silicon Dioxide Powder is vital because its porous structure allows it to absorb moisture and prevent clumping and binding of ingredients, with which it is combined. From flour for baking and cereal mixes to home-made seasoning and spice blends, Silicon Dioxide is a “magic powder” that can improve the quality of all your projects. Silicon dioxide (SiO2), also known as silica, is a natural compound made of two of the earth’s most abundant materials: silicon (Si) and oxygen (O2). For home spice blenders, this is great to add to your spices to prevent caking You shouldn’t exceed 2 percent of a food’s total weight of the agent. Each bag contains a minimum of 5 oz of food grade Silicon Dioxide. Write me with any questions.