Organic Stain: Mesquite Bean Reduction

Harvested locally from West Texas. This (1bottle) 17.5 ml. mesquite bean stain for pottery will render a black color when added to red earthenware clay. If you add this organic stain to a white earthenware clay it will not render dark black. But, if you add it to a white clay slip that is over a red clay you will get a dark color.