Nowadays, many people say that the vacuum insulated electric kettle saves electricity, but is it really very energy efficient?

If you need to use hot water on a regular basis in your life, an electric kettle with an insulated function is indeed more energy efficient.

The advantage of the insulation kettle is that it can slow down the loss of heat of the water in the kettle after the heating is completed, to ensure the stability of the water temperature in a few hours, that reduces the number of repetitive heating, relatively speaking, is to save electricity.

But if you don't have the need to do that, and you just want to drink cold water after boiling, there's not much difference with a regular kettle.