List of Pottery Terms - R

R

• Roller-head machine(W) Used in mass production of pottery, a rotary shaping tool that replaces jigger and jolley to shape wares.

• Raw, is unfired clay

• Raw glazing. refers to applying a glaze to an unfired ware and firing both in a "Once-firing".

• Reduction. Firing in an oxygen starved environment.

• Refactory refers to heat resistant or clay that is fired at a high temperature.