BRONZ and COPPRClay can only be fired in a kiln, buried in activated carbon. This is due to the copper in the material. Copper oxidises when heated and exposed to oxygen (this is why sterling silver goes black when heated, and needs pickling), so we create an oxygen starved environment by burying it in carbon.
You need to contain the carbon in a stainless steel pan which can survive heat for a long period, without breaking down. Containers made from ceramic fibre blocks, glass, ceramics, or heat sensitive metals, like aluminium, will not work.
1 litre of carbon would fill this pan. Ideally, place the pan on posts to allow the heat to circulate around it.
This pan will fit a Paragon SC2 kiln or larger - it WILL NOT fit the MiniKiln or the Prometheus little kiln.
Please measure your firing chamber before ordering - the pan is 176mm x 162mm and 100mm high, and comes with a lid.