Cups of tea are made from samples from across Sri Lanka at a tea broker in the capital Colombo.(Foreign Correspondent: Tom Joyner) Sri Lanka is the second largest supplier of tea to the Australian ...

and package them to be shipped around the world. At the Bogawantalawa tea centre in the Sri Lankan capital, Colombo, small ...

But are these guarantees accurate? Foreign Correspondent goes deep into the tea fields of Sri Lanka to investigate the “ethical” promises made by the most famous brands of tea.