Opening the kiln after a glaze firing is like opening a Christmas present, there’s massive excitement mixed with a lot of apprehension. Will it be the perfect book you have always longed to read or the dreaded novelty slippers that are impossible to walk in!
Unfortunately on opening the kiln this morning I was faced with the worst case of novelty slippers ever. Almost every piece was damaged in some way, seemingly affected by some weird volcanic like eruptions on the surface together with in some cases large air pockets trapped in the walls of the pieces. This isn’t the first nasty surprise I’ve had either, my last kiln load was similarly affected and now I’m desperate for answers. I have trawled the internet for possible causes; the work had not dried sufficiently, the bisque was fired too quickly or maybe it was down to carbon coring (a new one for me), was the kiln packed too tightly and therefore there wasn’t enough oxygen present during the firing.
I reflected on all of these points and so when I put the kiln on for a second time I tried to address all these possibilities and act accordingly but alas the results are exactly the same.
So now I turn to you………to anyone who’s out there and may be able to help. With Christmas orders to fulfil, this may be the difference between a new mug in someone’s stocking or some bath salts!