Pots are placed in closed containers, called saggars, which are filled with charcoal, peat, ash, and other combustibles. This produces an oxygen starved atmosphere during firing which has profound effects upon the clay and any glazes used. Iron oxide in a glaze can be reduced to elemental iron, leading, over time to rust spots appearing on a glaze surface – reminding me of the continuing process of change.
Shop Saggar fired Ceramics « Back to my Processes
3 Erosion Bottles, ht 15cm, saggar fired stoneware, 2017 image: Shannon Tofts