From c. 1740, English stoneware underwent a vigorous phase of development in response to competition from Chinese porcelain, the Staffordshire potters leading the way in evolving a whiter body for inexpensive utility wares such as bottles, jars and preserve pots.
the basic improvement was to add white Devonshire clay and powdered flint to the ingredients. These additions, combined with a new method of slip cast moulding, allowed the production of a lightweight, durable, white body capable of being cast in delicate, detailed shapes, and of withstanding the impact of boiling water. As with brown saltglaze, a pitted "orange peel" surface is characteristic.
the basic improvement was to add white Devonshire clay and powdered flint to the ingredients. These additions, combined with a new method of slip cast moulding, allowed the production of a lightweight, durable, white body capable of being cast in delicate, detailed shapes, and of withstanding the impact of boiling water. As with brown saltglaze, a pitted "orange peel" surface is characteristic.