I am enormously grateful to Alan Ault (junior) and the team at Valentine’s Clays (Stoke on Trent), for showing me around the factory and taking me through:

• the stages involved in the production of their terracotta, stoneware and porcelain clays
• the sources of their raw materials.

I am particularly interested in finding a source of clays that are local to me that I can buy commercially. This would be in addition to my practice of collecting small quantities of clay by hand for projects that explore their properties for throwing / making and glazing.

Beautiful old filter press at Valentines Clays in Stoke