Discovery: the most immemorial tea residue in the world

January 12, 2022 No Comments Industry News, News ctma

A certain charred material in a bowl was found in a tomb bulit during the early Warring States period(475-221BC) in Zoucheng, Shandong province. It seems like remnant after tea boiling or brewing Relevant research results have been published in the academic journal “Archaeology and Cultural Relics”, Issue 5, 2021 by a team from Shandong University.

The discovery is the testimony demonstrating the most immemorial tea residue (453-410 BC period) in the world, the article said.

Techniques, including Fourier transform infrared spectroscopy (FTIR), Gas Chromatograph Mass Spectrometer (GC/MS) and thermally assisted hydrolysis-methylation Pyrolysis Gas Chromatography Mass Spectrometry (THM-Py-GC/MS) were used to scientifically analyze the residues, with modern tea leaves and tea residue as reference samples.

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