Crossword puzzle clue "kiln"

to make (as steel or glass) less brittle by heating and then cooling

to cook in an oven

BAKE, to cook in an oven

BAKE, to cook in an oven

the process by which bread is baked

CERAMIC, an item made of baked clay, also KERAMIC

one who makes ceramics

to purify (e.g. sugar) with clay