Understanding the Drying Stages of Clay

Know when your pot is ready for trimming, attaching, or bisque with this drying guide.

Knowing how clay dries can make or break your pottery. Each stage matters — from timing your trimming to avoiding cracks in the kiln. Let’s break down the drying stages and what to look for in each.

1. Wet Clay
Fresh from the bag or wheel — soft, sticky, and shapeable. This is when you do most of your forming.

2. Soft Leather Hard
The surface is no longer shiny, and the clay is firmer to the touch. Ideal for light trimming, carving, and adding handles or joins.

3. Leather Hard
Strong enough to hold its shape, still moist inside. This is the best time for full trimming, altering forms, and assembling parts.

4. Stiff Leather Hard
Cool to the touch and nearly dry on the outside. Fragile now — limit handling to avoid damage.

5. Bone Dry
No moisture remains. Clay feels chalky and pale. Ready for bisque firing — but handle with care. It’s extremely brittle at this stage.

Final Tip
Dry your work slowly and evenly. Cover it loosely with plastic, especially in the early stages, and rotate shelves if needed.

Want to learn how to manage your clay from wheel to kiln? Join a course or speak to us during your next studio session.