‘We give our blood so they live comfortably’: Sri Lanka’s tea pickers say they go hungry and live in squalor

Top tea firms investigate as plantation workers say they have to pick 18kg a day but still skip meals and make their children work

Some of the world's leading tea manufacturers, including Tetley and Lipton, are examining working conditions on the plantations of its Sri Lankan suppliers, following a Guardian investigation.

Two global trade-certification schemes, Fairtrade and the Rainforest Alliance, are also conducting inquiries after it was revealed that some workers on 10 certified estates could not afford to eat and were living in squalid conditions.