From Wet Clay to Bisque: The Stages of a Pot

Clay changes as it dries, and each stage is good for different work. Knowing where your piece is saves it from cracks and breakages.

The stages

• Plastic. Freshly formed, soft and easy to shape.
• Leather-hard. Firm enough to hold its shape but still slightly damp. The best time to trim, carve and attach handles.
• Bone dry. All the water that can evaporate has gone. Very fragile; handle with two hands.
• Bisque. After a first firing without glaze, the clay is hard but still porous.

What bisque means

Biscuit or bisque is pottery that has been fired in a kiln without glaze. It can be a finished product in itself, but most often it is the stage before glazing and a second firing.

Drying slowly

Cover pieces loosely with plastic so they dry evenly. Rims and handles dry fastest; wrap them a little more. Fast, uneven drying causes warping and cracks.

Why pieces must be completely dry before firing

Water left inside the clay turns to steam in the kiln and can crack or burst a piece. Your studio's technician will tell you how they check dryness; follow their rule.

Next: glaze basics.

Out of the kiln 2026-10-20