Once the mug is completely bone-dry it is ready to be bisqued. After the bisque kiln is completely cool and unloaded, you can continue to decorate the mug with underglazes, if desired. After any underglazes are dry, it is time to glaze your mug.
Something to take into consideration: mugs (as with all food and drink ware) should have a gloss or high gloss on its interior, This cuts down on any bacterial growth taking hold in microscopic crevices. It also makes the mug much easier to wash thoroughly.
Get ready to glaze, then glaze your mug as desired.
Our example mug was glazed on the exterior with a semi-opaque white glaze that allows the decoration to peek through, but adds to an air of depth and mystery. The interior was glazed with an Albany slip glaze.