Green Daily

If you've been trying to be green about your choice of water carrying receptacle, you may have heard the occasional piece of worrisome scuttlebutt about the possibly toxifying effects of the beloved and low-cost Nalgene. These bottles are made out of polycarbonate plastic, and thus they contain Bisphenol-A (BSA), an endocrine disruptor. (BSA is known to be harmful to animals' reproductive functions and brain development, but there hasn't been conclusive research on its effects on humans.)

Despite knowing this key piece of information, we don't know much about how the plastic does or does not release BSA into the actual water (or Crystal Lite, or whatever) that the drinker imbibes from their bottle. Until now, when researchers at the University of Cincinnati have come out with a study that says that heating Nalgenes causes a much higher rate of BSA release.

So if you're in the habit of putting tea or coffee in your bottle, it might be time to invest in a good old Thermos. I finally bought a Kleen Kanteen, to be rid of the BSA worry altogether. Sorry, Nalgene...I love you.