Hi, I'm Tim Holiday, and I am going to show you how to clean tea kettles. Things you will need: a tea kettle, a sponge, dish soap and white vinegar. The first step is to fill the tea kettle halfway with water. Next pour about a half cup of white vinegar into the kettle. Now place the kettle onto a burner and turn on high heat. Allow the water to boil and remove from the heat. Set the kettle aside for a few hours to soak. Now, pour out the water and vinegar mixture and rinse thoroughly with cold water. Wash the exterior of the kettle using a sponge and dish soap. Rinse the kettle and air dry. And that's how you clean tea kettles.