I do use cone packs in my kilns. That's why I know the variation. I try to bisque to 04 and glaze at ^ 5-6. Now I would like to know if I need to rebisque whatever does not reach even the 'cooler' ^06. Or does it not matter much... Just absorbing the glaze more (& what is the effect of that!) Sorry, I guess I don't make my guestions very clear.
The kiln is electric.... Old small, manual Scutt...rewired awhile ago. I put a ^ 03 bar in the cone sitter in order to reach ^04. The variation in temps has increased (and reversed) over time. The bottom used to be the hot spot.
So, I hold the high fired ware longer in the glaze when dipping. Do I need to refire/bisque the lg platter that didn't reach ^ 06? Thnx
Thnx Min for your response. I've done all you suggested over the last 6 days...the last two being upside down ...with a fan ...but plastic around the rims. (Never used foam?) My concern now is are they EVER going to pop off and if so (without forcing) am I going to be able to foot them! You are right. I'm sure they (the bats) never really dried out as I had done 6 previously and it has been very humid here. A lesson learned I guess....but they feel really dry now!?
My other problem (you mentioned in passing) is I'm thinking the rims are pulling up (drying faster?) because I had to refoot my previous ones as they would end up raised in the middle ... Or spinning on that middle foot ring (which after losing a few I eliminated). I don't ever seem to remember having such a problem. What do you find is the best way to dry plates and platters. Upside down? Right side up with a heavy bat on top?
And clay lover... What's/is there a difference between plaster and hydro? I just find my old plaster bats uneven, and I like the convenience of pins.