A new study that analyzed protein residues from ancient cooking cauldrons found what the people of Caucasus in the Bronze Age ate.
Archaeologists have long been drawing conclusions about how ancient tools were used by the people who crafted them based on written records and context clues.
But with dietary practices, they have had to make assumptions about what was eaten and how it was prepared.
The new study published in the journal iScience in August analyzed protein residues from ancient cooking cauldrons and found that the people of Caucasus ate deer, sheep, goats, and members of the cow family during the Maykop period (3700-2900 BCE).
“It’s really exciting to get an idea of what people were making in these cauldrons so long ago,” says Shevan Wilkin of the University of Zurich.
“This is the first evidence we have of preserved proteins of a feast — it’s a big cauldron. They were obviously making large meals, not just for individual families.”
1/ During the Bronze Age, cooking was typically done in ceramic pots. However, in the Late Bronze Age, a new cooking vessel was introduced: the cauldron.
Cauldrons were made by riveting together sheets of bronze to form a rounded cone#Life_in_Bronze_Age_Ireland #Archaeology pic.twitter.com/lbNsHGgz7p
— Charles Mount (@cmount1) May 24, 2023
Scientists have known that the fats preserved in ancient pottery and the proteins from dental calculus — the hard mineralized plaque deposits on the teeth — contain traces of the proteins ancient people consumed during their lives.
Protein analysis reveals what people ate in the Bronze Age
Now, this study combines protein analysis with archaeology to explore specific details about the meals cooked in these particular vessels.
Many metal alloys have antimicrobial properties, which is why the proteins have been preserved so well on the cauldrons. The microbes in dirt that would normally degrade proteins on surfaces such as ceramic and stone are held at bay on metal alloys.
“We have already established that people at the time most likely drank a soupy beer, but we did not know what was included on the main menu,” says Viktor Trifonov of the Institute for the History of Material Culture.
The researchers collected eight residue samples from seven cauldrons that were recovered from burial sites in the Caucasus region. This region sits between the Caspian and Black Seas spanning from Southwestern Russia to Turkey and includes the present-day countries Georgia, Azerbaijan, and Armenia.
They successfully retrieved proteins from blood, muscle tissue, and milk. One of these proteins, heat shock protein beta-1, indicates that the cauldrons were used to cook deer or bovine (cows, yaks, or water buffalo) tissues. Milk proteins from either sheep or goats were also recovered, indicating that the cauldrons were used to prepare dairy.
Radiocarbon dating allowed the researchers to specifically pinpoint that the cauldrons could have been used between 3520-3350 BCE. This means that these vessels are more than 3,000 years older than any vessels that have been analyzed before.
“It was a tiny sample of soot from the surface of the cauldron,” says Trifonov. “Maykop bronze cauldrons of the fourth millennium BC are a rare and expensive item, a hereditary symbol belonging to the social elite.”