Electric Kettle, 1.7L Glass Boiler Electric Tea Kettle with Blue LED Indicator Light, Silver

I make tea with it in a tea ball but can only fill to one liter line if not watching of it boils over. the tea ball might be reason it does as it states kettle if not over filled would not boil over. But if I under fill to 1 liter line it will shut off before boiling over.

This kettle is great for making iced tea. The water comes to a rolling boil in about 3 minutes or less. It turns itself off when boiling stage is reached. I just add some tea bags and let it steep. So easy, after steeping just pour into an gallon pitcher and add more water. For sweet tea before adding more water add desired amount of sugar to melt then stir and add water. We love it, faster than stove method.