Dangerous tea?

Tea

Tea that you get for free at most restaurants (if they don’t serve hot water). I’m still unsure whether it’s bottled or tap water. The tea makes it hard to taste the chlorine but I often think they just cook the tap water. That might kill bacteria but not remove the chemicals.

It’s also not so easy to drink only the fluid not the tealeaves. A Chinese friend suggested to blow on the surface. Works. Kind of.