Thank you for viewing. This is ash from a wood-burning stove using natural firewood. (Oak, cherry, zelkova, cedar) It has been sifted through a 3mm mesh, resulting in a fine, powdery, and smooth texture. How about using it for ceramic glaze, hibachi, irori (sunken hearth), or for removing harshness from ingredients? *We also offer small portions, so please feel free to inquire.