Hey Blast,

Since you are the chemist and water bottle connoisseur here at the campfire I wanted to ask for your expertise. Which Nalgene bottles are the most easily recycled and are the safest to buy? I've heard their HDPE (#2) is much easier to recycle than their PC (#7) bottles. I'm not sure what plastic their bladders are made of.

On a health note: I'm currently wrapping up my PhD in Physiology at the University of California, Davis and some friends of mine in the department studying reproductive endocrinology have expressed another concern with the PC (#7) plastic; it potentially exposes the consumer to bisphenol A an estrogen mimicing compound that increases risks to cancer and other hormone disrupting activities. Have you heard of any of these concerns as well?

What's your opinion on which type of plastic is best? Thanks for the help on the decision. This is a great coupon that is too good to pass up. However, I hate the potential irony of buying gear to enjoy the outdoors that may someday end up in a landfill, thus harming the very outdoors I wanted to enjoy.

Thanks Blast!

Cheers,