wow, only had one piece explode in the 7 years I have been doing pottery. My sister in-law had carved a head once that exploded because she didn't hollow it out but that's it and we (two) of us are production so a lot of pottery. We use porcelain and let everything sit for a few days getting bone dry and bisque, no candling but I am on an electronic.
My 2 cents though is If you have not had this problem I wouldn't start fussing with your routine that has stood the test of time, that will drive you crazy and seems like it would be unlikely to be the problem if your stuff is bone dry when you put it in. If you change something external and it makes what's really happening not occur then you are going to doom yourself to some odd routine. There was a poster on here I recall that solved a similar problem by some month long completely unnecessary drying routine and she is now convinced that pottery is THAT fussy. It is fussy but not fussy. I vote for the new sitter being screwed up. Can you take it back?
- flyemma likes this