Definitions for "Ash glaze"
A glaze made with varying proportions of wood or vegetation-derived ash, sometimes together with clay, feldspars and other minerals. Different ashes impart their own distinctive colors and textures to glazes.
Used on stonewares as a decorative glaze, derived from vegetable ashes and varying widely. Most contain potash, lime, silica, and alumina. These are also referred to as alkaline glazes, typical examples of which can be seen on the American face jugs of the Carolinas and Georgia.
A glaze formed by the interaction between the surface pf the ceramic and ash which may be carried over from the fire accidentally with the kiln gases, or deliberately sprinkled on the surface of the pot. (effect?)