Complaint filed against retail giant after an experiment found that the teabags did not biodegrade after a year buried in soil

A team of researchers has filed a complaint against Tesco, saying its “biodegradable” teabags do not fulfil that claim following an experiment that involved burying them in soil for a year to see what happened.

Dr Alicia Mateos-Cárdenas from University College Cork (UCC) set out to investigate how well teabags advertised as biodegradable broke down. She buried 16 Tesco Finest Green Tea with Jasmine pyramid teabags in garden soil. However, when the teabags were dug up, they remained intact.

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