Contrary to popular belief, it is not dangerous to dilute tea with unboiled water..
We explain why you should not be afraid to add raw water to tea.
Can you add raw water to tea?
According to ntv.ru, adding unboiled water to tea does not pose any danger.
However, the prejudice against this habit did not arise out of nowhere.
It is from the times when people took water for drinking from reservoirs and wells.
And even tap water in the old days could be unsafe.
Therefore, it was strictly forbidden to mix unboiled water with boiled water and add it to drinks.
These days, most large cities have a well-established water treatment system, and there are no dangerous microbes in tap water, notes ntv.ru.