To clean stains in your teapot, use baking soda and boiling water.
Step-by-Step Instructions:
- Add Baking Soda: Put a few scoops of baking soda into the teapot.
- Pour Boiling Water: Pour boiling water into the teapot.
- Let it Sit: Allow the mixture to sit in the teapot overnight.
This method helps to loosen and remove stains effectively.