Nothing that comes in a plastic bottle should be drunk, IMO. If the bottles get much above room temperature chemicals begin being released into the water/drink contained. My general physician is a sharp guy, and a hunting friend. After I had my first kidney stone attack recently I made the comment that I wasn't going to drink my well water anymore because it was extremely high in calcium content, and that I'd be drinking purified bottled water. He told me quickly to stay with my well water, that it was much healthier for me than bottled water, and explained about the chemicals from the plastic being released into the water inside.
So, I'm drinking well water, which comes straight out of limestone rock, and taking a month's worth of Chanca Piedra every so often to dissolve any potential stones.
YMMV, SRH
