Sawdust firing is a ceramic technique in which sawdust is used as fuel to create a reducing atmosphere around the pieces. During the process, the sawdust releases gases and smoke as it slowly burns, generating unique effects on the surface of the pieces, such as darkening, smoking and organic patterns. This low-temperature technique is prized for the unique decorative results it produces.
The pieces, usually previously bisque-fired, are placed in a container or kiln surrounded by sawdust. The sawdust is ignited, and the controlled combustion causes a direct interaction between the smoke and the surface of the pieces. The process can be supplemented with the addition of materials such as leaves, salt or sulfates to intensify the visual effects. Although the results are difficult to predict, this unpredictability is one of the most valued characteristics of the technique.
Interesting Fact
Sawdust firing is a very ancient technique that has been used in various cultures around the world, from Latin America to Japan, to create unique effects in ceramics.
Helpful Tip
When using sawdust in firing, experiment with different types of wood, as each type can produce different color and texture effects on the piece.