Interpretation of the function and role of the Mesopotamian – and peri-Mesopotamian – bevel-rim bowl (BRB) is enriched by recent residue analysis methods. A promising theme of secondary and even alternative primary uses of the BRB in the Uruk periphery during the fourth millennium B.C. is emerging. I make the case for such uses hinging not on its general utility as a small rough bowl (where it would compete with a range of conical cups) but on its pivotal characteristics: a sophisticated system of rapid, low skilled, production line manufacture of containers with specific features (notably thick walls for heat retention), and with an elegant technology-transfer concept of a single BRB as a portable manufacturing template and mould, notably suited to mobile groups. The BRB’s novel ‘system’ suggests it was initially devised for one specific purpose – as I argue, for large-scale baking of leavened bread, perhaps for commensal feasting events. But the renowned BRB discard stacks or stockpiles (perhaps from single-use commensality events or seasonal batch BRB manufacture) lent them readily to secondary use, notably in the Uruk periphery, where their original cultural resonance may have been diluted. The BRB’s virtues of speed and ease of manufacture might well then have encouraged production for more general purposes and new needs, including culinary – an evolution potentially detectable through morphology. The residue analysis to date additionally suggests a specific functional factor in the adoption of BRBs for secondary and eventually primary use: their heat retentive capabilities, making them specifically valuable as ‘thermal paint-pots’ for meltable materials such as bitumen, beeswax and animal fats. These materials could be heated in a larger vessel and decanted into thermally efficient BRBs for use, perhaps with a form of paintbrush, for coating, in a wide range of industrial and other uses.
