Greenware is pottery that has been shaped but not yet fired, at any stage from freshly made to bone dry. It is fragile and can still be softened back into clay with water, unlike fired bisqueware.
What Is Greenware?
The word green here means unfired, not the colour. Greenware covers wet, leather-hard and bone-dry work, and potters usually say which stage they mean. While it is greenware, a piece can be trimmed, carved, joined, decorated with slip and, if it goes wrong, reclaimed.
Bone-dry greenware is the most fragile state in a pot’s life. It breaks easily, especially at rims and handles, and should be carried with two hands from the base. Many studios ask that greenware be left on a dedicated shelf for loading into the bisque.
Dry greenware also makes fine dust, which contains crystalline silica. Sand or scrape it only when damp, clean up with a damp sponge rather than a brush or broom, and wear a P2 mask if you must work with dry clay. Once bisque fired, the piece is ceramic and can’t be slaked back into clay. That is why it pays to check every piece carefully for cracks and thin spots before it goes to the kiln.
This pottery glossary entry from Le Studio Art Space is general educational content. Always follow the clay, glaze and kiln makers’ data for your own materials and equipment.