Locally sourced grapes and imported tar pitches may have been the norms for winemakers along the coast of Italy during the Roman period, according to jars recovered from the ocean near the harbor of San Felice Circeo.
Three different wine jars, or amphorae, were recovered and analyzed, giving researchers a useful insight into the practices for producing wine in this particular region in 1–2 century BCE, part of the late Greco-Italic period.
"[T]hree marine amphorae, retrieved in 2018 from the ancient anchorage of San Felice Circeo , offered a rare opportunity to develop interdisciplinary research through archaeobotanical and chemical analyses," write the researchers in theirOne of the lab techniques used here was a combination of gas chromatography and mass spectrometry, different ways of separating and identifying chemical markers in a material – in this case, trained on the organic residue left in the jars.
While the researchers can't be sure about all of the conclusions that they've reached in their study, they have been able to go further because of the range of interdisciplinary methods used in teasing out the chemical makeup of what's left in these jars.
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