So I'd ordinarily argue against small bottles of water as a horribly inefficient and wasteful (and expensive) way of delivering water, but there's some reason to think that water that's been left in its bottles for a while in hot conditions might not be the healthful quenching treat one might be looking for.
More study needed, etc., etc., and, yeah, we're talking about more extreme conditions that the ordinary bottle is likely to go through. On the other hand, what sort of lower levels of BPA and antimony are you comfortable with?
Don’t drink the (warm) water, study says
There’s an old saying: “Don’t drink the water.” But a scientist warns Americans not to drink water from plastic bottles if it’s been sitting in a warm environment for a long time. A research team examined 16 bottled water brands at 158 degrees for four weeks. The study found that as bottles warmed over the four-week period, antimony and BPA levels increased.
