I use 2 types of clay: beige or white. Both are earthenware clays and are fired between 1020 and 1040˚C.
The glaze I use is a pre-mixed lead-free transparent glaze. Microwave and dishwasher friendly. Convenience is very important point for me as I know people are deterred from buying handmade ceramics that must be hand washed. In loading your dishwasher, be certain that pieces do not touch other items to avoid chips during the washing cycle.
Safety first: pieces will be hot after time in a microwave, so use of mitts to prevent hand burns is recommended.