Best way to brew tea is with a temperature-controlled water bath (semi-sous vide) system.And all the minerals in the water crystalises :biggrin:
This is really more suited to constant tea drinkers, not your afternoon tea kind of person.
1) Set the water bath to your desired brewing temperature.
2) Check that the water bath is at the correct temperature with a separate thermometer.
3) Immerse the teapot in the water bath and fill the teapot with brewing water.
4) Let the brewing water equalize in temperature.
5) Add tea leaves when it has done so.
6) After desired brew time, remove the teapot and dry the outside.
7) ???
8) Profit!
