Fill the teapot with white vinegar.
Wait 25 minutes as the vinegar dissolves the lime deposits. Pour out the vinegar.
Wet a soft cloth with white vinegar and use it to wipe out the inside and outside surfaces of the teapot.
Rinse the teapot and dry it with a lint-free cloth.
Form a paste by mixing 2 tablespoons of salt with 2 tablespoons of lemon juice.
Rub the paste onto the surfaces of the teapot.
Wait approximately 30 minutes.
Rinse the teapot and dry it with a lint-free cloth.