Before you set out to boil milk in an electric kettle you need to know how the kettle auto turns off feature works. The electric kettle automatically turns off as soon the fumes reach the top of the lid, and that happens because the kettle assumes that the liquid is now boiled. But that is usually the case with water. With milk, since there are fats and protein in it, there is very little to almost no steam coming out of it. This means that the electric kettle would not turn off automatically and the milk might burn or spill if there is too much. Well, that's all about the problem. Now here is the solution: The best way to boil or warm the milk is by keeping the lid open, and at the same time keeping the eye on the milk and shut down the kettle as soon as the milk starts boiling.