Hi all! I have a question about warped plates. My plates always seem to warp the same way – they bow up in the center outwards, so anything put in the middle would roll to the rim. I’ve included some pics although it is hard to get a good angle of the warping.

My process is this:

– hand roll out slab with rolling pin

– move as best I can to drywall board

– compress with rib

– leave to dry a bit

– pinch edges to create rim

– let dry to just before leather hard

– carve my design with needle

– add underglaze to lines

– wipe underglaze away with sponge

– leave on board to dry completely (this is the time it warps)

Usually that’s it, but this time I also wiped the bottom with a sponge to even out the moisture (in theory) before drying completely.

This happens almost every time I make a plate, especially with the larger ones. Any advice?