Thanks Blast! :^)

You comprehensively answered all my questions. I do have one bottle from a company here in northern California called klean kanteen. Its made out of food grade stainless steel.

The bad thing is as you mentioned it does not have a "wide mouth" opening, its about 5 times more expensive than the nalgene bottles and its made in China (worrisome with recent events). I do like that I could put it on the fire in a pinch to purify water, but I would subsequently burn myself no doubt ;^).

I'll give you a heads up if they ever make a wide mouth version and have a sale ;^).

Cheers and thanks again for your expertise!