A cream-like combination of clay and water used during the act of pouring slip into a porous mold to create ceramic items. Water is sucked from the slip and into the mould, leaving a thin, non-liquid clay shell around the form’s inner surface. The excess liquid is thrown off when the slip reaches the desired thickness, and the remaining slip is allowed to dry fully.
The piece is then taken out of the mold, cleaned, glazed, and fired. For mass-produced ceramics, this rapid and easy procedure is used, leaving just the glazing as a chance for individuality.