How Long To Bake Clay in the Oven | An Expert Guide with Details


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Clay and the finish will vary depending on the material you choose. For example, if you’re creating a mug or a vase, you will most likely want to bake it slowly, and it will probably take longer than if you are making something like jewelry or decorative tiles. Baking clay in the oven is not as simple as throwing it in the oven and hoping for the best.  There’s a suitable and improper way to bake it in the oven. Its blog will help buyers understand how long they should bake the clay in their ranges and how they can avoid common baking mistakes.

How Long To Bake Clay in the Oven?

How Long To Bake Clay in the Oven

Bake for 30 minutes per quarter inch of thickness. It is suggested that thicker pieces be initially baked for 15 minutes, then another 5 minutes, and then another 5 additional minutes each time, up to a total baking time of 20-30 mints. After the final bake at 30mins long, you can add on more pressure or oven temperature over the next 10-20 mins to ensure your piece will withstand any breakage during transport or display!.

What Are Some Other Things To Keep In Mind When Baking Clay In The Oven?

How Long To Bake Clay in the Oven

If you are baking clay in an oven, make sure to use the recommended temperature before baking. You may need to wait for a while before you can bake. Your clay can vary depending on the type of clay you are using. Make sure to measure the thickness of the clay before putting it into the oven.

If you are using a baking stone, do not preheat it in advance since this will cause it to crack. You want to avoid overfilling the pan with clay as this will cause the clay to bubble and come out of the sides of the pan. It is also important not to bake higher-fired clay for too long as it will cause shrinkage and warping.

Different Types of Clay That Require Other Baking Times and Temperatures

Different Types of Clay That Require Other Baking Times and Temperatures
  • Baking time for every kind of clay determines by the clay’s chemical composition and the baking temperature required.
  • Clays vary in their chemical composition and react differently to heat. For example, kaolinite clay requires a higher baking temperature than montmorillonite clay. 
  • Other clays that need different baking times and temperatures include bentonite, ball clay, and smectite. 
  • Jaspar clay is high in iron, requiring a higher baking temperature than other clays. 
  • Pottery clay requires lower temperatures because they are more porous. 
  • If you are making polymer clay sculptures, you must bake them in the oven to ensure they are scorched and hardened.
  • Un-dried clays will need to cook at a higher temperature for a shorter time than dried clays. 
  • Clay made with salt will need to be baked at lower temperatures for more extended periods, while clay made with petroleum products needs to bake at higher temperatures for less time.
  • Refractory clays, such as kaolin or ball clay, typically require a higher baking temperature and longer baking time. 
  • Color clays are often baked at the lowest temperatures for the shortest time to avoid “kiln burn.


In conclusion, clay can bake in the oven, but it depends on the thickness of the clay, density, and size. It is best to bake it at a low temperature for a long time. Alternately, one may bake it for a short time at a high temperature. The best temperature for a clay oven is around 350 degrees, which achieves a good balance between drying and baking.

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