The interiors were visible only in imagination.
High-precision 3D scanning allowed researchers to map vessel interiors without physical extraction, solving a preservation challenge that traditional archaeology couldn't address. Analysis revealed distinct patterns and morphologies in the vessels, suggesting different production origins and possible secondary market circulation among Roman tavern keepers.
- 40 ceramic vessels from Roman taverns analyzed using 3D scanning
- Vessels embedded in concrete since 79 A.D. eruption of Vesuvius
- Study by Japanese archaeologists Xinyan Zhao and Yoshiki Hori published in Journal of Archaeological Method and Theory
- Vessels showed distinct patterns suggesting different production origins and secondary market circulation
Japanese archaeologists used 3D scanning to analyze 40 ceramic vessels from Roman taverns in Pompeya, revealing details about food storage and production methods without damaging the 2,000-year-old artifacts.
Pompeii has always been a city frozen in time—preserved not by care but by catastrophe. When Vesuvius erupted in 79 A.D., the ash that buried the Roman settlement also locked it in place, keeping buildings and streets and the ordinary objects of daily life intact for nearly two thousand years. But some of the most telling artifacts from that world have remained stubbornly inaccessible. Forty ceramic vessels sat embedded in the concrete walls of ancient taverns, their interiors holding clues about what Romans ate and drank, their exteriors sealed away by the very masonry that protected them.
These were not delicate vessels meant for display. They were working containers—large storage jars installed into the counters of bars and eating houses where Romans gathered to drink wine and connect with neighbors. The vessels held food and drink for regular customers. To understand what the Romans consumed, what they preserved, how they organized their commerce, archaeologists would need to see inside these jars. But extracting them risked destroying them entirely. The ceramic was fragile. The concrete grip was absolute. For decades, these vessels were simply left out of systematic archaeological study. The interiors were visible only in imagination.
Then, between 2018 and 2020, Italian historians found a particularly well-preserved counter. Inside the embedded vessels, they discovered animal remains, legumes, and other organic material—evidence of actual food, actual meals. The discovery sparked a question: what else might these jars reveal if someone could look inside without breaking them open?
Two Japanese archaeologists, Xinyan Zhao and Yoshiki Hori, proposed a solution that seemed almost obvious in hindsight: high-precision 3D scanning. They carefully cleaned away dirt and mortar from the vessels to prevent contamination, then used the scanner to create a complete three-dimensional map of each interior. The result was published in the Journal of Archaeological Method and Theory. What they found was not uniformity but variation. The vessels followed certain patterns, certain shapes, but they were not all identical. Some were built differently from others. Some showed signs of having been made in different workshops or acquired through secondary markets—tavern keepers buying used jars from other sellers, other sources.
The Roman potters who made these enormous storage jars worked with slow wheels, building them section by section, applying manual precision with the efficiency of the potter's craft. The variations in their work—the different morphologies, the different proportions—told a story about how Roman commerce actually functioned. Not everything came from one source. Not everything was new. The taverns of Pompeii were supplied by a network of producers and resellers, a system of circulation that the jars themselves could now testify to.
What makes this work significant is not just what it reveals about Roman dining and storage. It demonstrates a new way of doing archaeology at sites where the traditional methods—excavation, extraction, direct measurement—risk destroying the very things being studied. The 3D scanner solved a problem that had seemed unsolvable: how to read the interior of an object without removing it from the wall. In doing so, it opened a door to thousands of other artifacts across Pompeii and beyond that have been left unstudied simply because no one could figure out how to examine them without causing harm. The technology doesn't replace archaeology. It extends it.
Notable Quotes
These vessels were traditionally excluded from systematic archaeological analysis because direct measurement is physically impossible. Only the interiors are visible, while the exteriors remain enclosed within the masonry.— Xinyan Zhao and Yoshiki Hori, archaeologists
The variation in vessel morphologies suggests separate production origins and may reflect reuse or acquisition through secondary market circuits.— Study authors
The Hearth Conversation Another angle on the story
Why couldn't archaeologists just remove these jars from the walls and study them directly?
The jars are ceramic—ancient, fragile. They've been embedded in concrete for nearly two thousand years. Pulling them out would almost certainly shatter them. You'd destroy the evidence you're trying to preserve.
So the 3D scanner lets you see inside without touching them?
Exactly. It maps the interior space in complete detail. You get a three-dimensional model of what's inside—the shape, the volume, any residue or marks—without ever breaking the seal.
What surprised the researchers most about what they found?
That the jars weren't all the same. You'd expect a tavern to have uniform storage vessels, but these showed distinct patterns. Some were made differently, suggesting they came from different potters or were bought secondhand.
Why would a tavern owner buy used jars?
Cost, probably. Or availability. It suggests a whole secondary market in pottery—jars changing hands, being reused, circulating through the city's commercial networks. The jars themselves become evidence of how Roman commerce actually worked.
Does this method work for other artifacts at Pompeii?
That's the real significance. Thousands of objects are embedded in walls or too fragile to extract. This opens a way to study them without risk. It changes what's possible in archaeology.