Lipton products are sold at a Beijing supermarket. A Greenpeace investigation has found that Lipton, the world’s best-selling tea brand, sold tea bags to Chinese consumers that violated Chinese laws and failed EU safety standards. In March 2012, Greenpeace purchased boxes of Lipton tea bags produced and sold in China at two Beijing stores. The samples were sent to an independent lab for pesticide residue testing, were it was found that all four Lipton samples contained dangerous levels of numerous pesticides.