i guess because citrate or anything citric evaporates after in an open area.
Convincing someone you are right
Answer:
Granulated Sugar. Granulated sugar is a highly refined, multi-purpose sugar. ...
Caster Sugar. Caster sugar is superfine granulated white sugar. ...
Confectioners Sugar. ...
Pearl Sugar. ...
Sanding Sugar. ...
Cane Sugar. ...
Demerara Sugar. ...
Turbinado Sugar
Answer:
no, Don't rinse with water straight after toothbrushing
After brushing, spit out any excess toothpaste. Don't rinse your mouth immediately after brushing, as it'll wash away the concentrated fluoride in the remaining toothpaste. This dilutes it and reduces its preventative effects.
Explanation: