Reactive Glaze and Every Dishes Unique: The surface of dinnerware sets are made of reactive glaze material. Reactive refers to a technique how multiple colors within the glaze react together to create a dreamlike, vibrant quality to the colors and hues. As a result of the reactive nature of the glaze, each stoneware dinnerware set is unique. The color gradient on the edge of the bowl is the result of artisan manual spray glaze coloring