These crucibles can actually be used several times. Flux coats the inside - where the heat needs to occur - with each smelting and helps the crucible last longer. Best for smelting ores.
For the Microwave Kiln or KK-8. Not for use in the mini Kwik Kiln.
Top OD 3.4” / Bottom OD 2.2” / Ht 4.4”
