Two pottery kilns were excavated at Karm er-Ras (Area Y). The two well-preserved circular pottery kilns and another small circular chamber were built directly on the uneven bedrock. Kiln 463, the larger of the two kilns with an outer diameter of 3.0 m, had a circular outer wall made of small and medium-sized stones and coated with layers of mudbrick. In the center of the kiln, there was a thick central pillar, made of several courses of small stones and coated with mudbrick and between the outer wall and the central pillar there was a circumvallating corridor (0.54 m wide) whose floor lay slightly below the surrounding ground level. A single rectangular mudbrick beam of the original platform floor lay in situ, bridging and roofing the corridor from the outer wall to the central pillar. This brick beam was manufactured with semicircular holes carefully cut out of both the long sides, and when the bricks were laid side by side the adjoining semi-circular insets would form circular openings in the brick platform, thus covering over the lower chamber whilst still allowing the passage of hot air from the lower chamber up to the upper firing chamber. The upper chamber must have been roofed with a domed roof that was not preserved.

Kiln 462 was built adjacent to Kiln 463, according to the same plan, but was slightly smaller and less well-preserved. A third smaller round Chamber 465 without a central pillar, was constructed of five courses of medium-sized stones and part of its domed roof was visible in the baulk. The chamber may have served for controlled cooling of wares removed from the kiln.

The two kilns were full of packed ash and burnt debris and contained many smashed storage jars, and many similar broken storage jars were found on the adjacent floor and in the overlying debris (L491, L469); altogether there were more than thirty jars.