Microwave kiln


I have a microwave kiln also, but mine is the larger microkiln.  I’m wondering if you have some metal on the bottom-inside of the kiln, maybe imbedded in the base?  I had the same thing happen to me when I put a brass filigree between glass layers (duh, I know).  Within 10-20 seconds of starting the microwave I had a mini lightening bolt in the mic kiln which scorched the base, and melted a dime size area of the glass.  It made a chinking sound which prompted me to stop the microwave and check the glass.

Hope this helps.


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