Are There Special Techniques for Firing in Wet Conditions?

Managing Moisture in Primitive Firing

When firing in wet conditions, it’s essential to minimize the amount of water in the kiln to prevent steam buildup and potential explosions. To achieve this, fire at a lower temperature (around 1000-1200°F) to dry out the kiln and the piece. This process is called “pre-drying.”

Techniques for Firing in Wet Conditions

One technique for firing in wet conditions is to use a “wet firing” process, where the kiln is loaded with greenware and then covered with a layer of combustible materials such as wood chips or sawdust. The kiln is then fired at a lower temperature (around 1000-1200°F) to dry out the greenware and the combustible materials. However, this process requires careful monitoring to prevent overheating.

Sourcing and Preparing Clay for Wet Firing

When sourcing clay, look for types that are naturally less prone to water absorption, such as ball clays or plastic clays. For coil method pottery, it’s essential to prepare the clay by kneading and drying it thoroughly before use. This will help reduce the amount of moisture in the clay and make it more suitable for firing in wet conditions. Additionally, applying a waterproofing layer, such as a slip or a beeswax mixture, to the greenware can help protect it from moisture during the firing process.