To remove calcium deposits from a coffeepot or teapot, scrub with the flesh of a lemon. It’s fine to use a lemon wedge that has already been squeezed. You can sprinkle on a little baking soda or salt to help rub away really stubborn stains.
You can also use vinegar, brew a full pot of half vinegar and half water, turn it off when the solution comes to a boil and let it sit for about an hour and rinse thoroughly.
