This week's mantra is: If it can go wrong, it will go wrong! (But if you're not sure why it's gone wrong it's probably the kiln)
My fantasticly hard working little kiln has finally worked too hard! Little glaze blisters started to appear in the odd mug here and there last week until we had a full blown over firing. Warped and blistered pots a-go-go. So with the help of a very wize and genrous friend I borrowed a set of Orton pyrometric cones and set out to find out what was happening!