You have a very nice porcelain teapot that your grandmother gave you transmitted.
But the porcelain is stained. Whether Limosges, Chinese or Japanese porcelain, cleaning old porcelain is a delicate operation.
And you are afraid of using a product that is too aggressive.
Fortunately, there is an effective and safe trick to cleaning your porcelain teapot. Just use baking soda.
1. Dampen a cloth.
2. Soak it in baking soda.
3. Rub with care.
There you go, your porcelain service has regained all its shine. :-)
The colors are now more vivid.
With this trick, the only risk is a crack due to improper handling. So act gently.