Naturally colored and earthy by the fire of wood firing, Wolfgang Jacob's objects have the appearance of natural stone in terms of shape and surface. The characteristically flamed surface can also be found on his large double-walled vessels, produced using a special plate technique, as well as on the cups, bowls and plates for everyday use.
The salt glaze is an approach glaze. While other glazes are applied before firing, the salt glaze is created during firing.
Engobe refers to a mixture of finely slurried clay liquefied with water, which is applied to raw or also bisqued ceramic workpieces for decoration.
In fossil fuel furnaces fired with oil, gas, wood, coal or coke, the fire occurs in an open flame and reducing atmosphere.
Designation for ceramics which, with or without glaze after the firing process above 1200° C, has a hard, solid and dense body (term for a fired ceramic mass).
In the context of the „Internationalen Keramiktage Oldenburg“ , the term "unique vessel" is associated with special, artistic vessels.
The term "utility ceramics" is used in the context of the "International Ceramics Days Oldenburg" to refer to handmade ceramics which, no matter what form they take, are primarily geared to function.
