Cleaning of glass teapot

 Salt and toothpaste can wipe the tea rust off the cup. First, soak the scrubbing tools such as gauze or paper towels, then dip the soaked gauze with a small amount of edible salt, and wipe the tea rust inside the cup with the salt-soaked gauze. The effect is very significant. Squeeze the toothpaste on the gauze and scrub the stained tea cup with toothpaste. If the effect is not significant, you can squeeze more toothpaste to wipe. The tea cups that have been scrubbed with salt and toothpaste are rinsed and ready to use