Glossary

Depending on the kiln and the effective firing temperature, different colours and effects will be achieved.

 

Our earthenware glazes are usually fired at 1050°C with a dwell time of 30 minutes. After an initial preheating temperature (this is usually between 400 and 600°C, depending on the kiln or equipment), we heat the ceramics in our laboratory kiln to the final temperature with maximum heating ramp. If you set a reduced heating ramp for your kiln (e.g. to protect the items to be fired and the firing batts), than the final temperature can be reduced accordingly in order to achieve comparable firing results.

 

Our stoneware glazes are also fired with maximum heating ramp starting from 400 or 600°C up to the desired end temperature with a dwell time of 30 minutes. The pictured glaze samples (vases) were fired at different end temperatures, which is listed accordingly. Basically, stoneware glazes tend to have a more matt surface at lower temperatures and a more glossy surface at higher temperatures.

 

Experience has shown that crystal glazes in particular require a firing temperature of 1230 - 1250°C so that the glaze is sufficiently fluid and the crystals can develop.