Consumer magazine Which?has launched an investigation into complaints that new kettles is making tea undrinkable across the UK.

People from various parts of the UK have complained of a nasty taste in their tea that was in new kettles. Some said that the nasty taste existed even after cleaning the kettle with vinegar and bicarbonate of soda while others said that they boiled water more than 20 times before the first use but the problem still persists.

The magazine had launched an investigation earlier this month. It tested Russell Hobbs Ebony 15076 kettle after customers said that the kettle made their tea "undrinkable". The testing lab confirmed there was a problem with boiled water's smell and taste. However, the scientists could not find a cause and complaints have been made against several brands including Russell Hobbs, Phillips and Delonghi.

The magazine has asked people to boil water in a saucepan to solve the problem.Tim Wright, the managing director of Russell Hobbs,said the problems were an "isolated incident" and asked people facing problem to call customer services.A Spokesperson for Morphy Richards said they were aware of complaints and asked customers to call customer services id facing a problem.