The first room of the itinerary was used, from the 13th to the 16th century as a pottery.

A part of the chamber was excavated from the tufa rock and as a result of prolonged exposure to high temperatures the kiln walls have become white.

At each firing, the kiln was closed with a wall of heat-resistant bricks, the rectangular recess in the corner is the outlet of the chimney flue.

The discovery of this kiln, in 1985, showed that majolica was also produced at Orvieto in the 15th and 16th centuries, which until then were considered the mystery centuries in the history of Orvieto ceramics.

It's possible to see also some original tools used in the workshop [terra cotta and stone moulds, trivets, fragments of firing cases,...] and some medieval kiln discards, thrown away because they were defective in shape or decoration.