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Overall, don't believe BS hype about "chemical leeching materials" or other pandering 'buzz words' unless you've either done the testing yourself or done the leg work and found proper research
Just because it's weird to you doesn't "say a lot" about anything, my requirements are very technical and specific, I pointed out a factor where I prefer titanium over plastic. Sometimes you need to boil water in survival situations. If you are hiking on well marked trails or in the city park then these kinds of concerns are academic and not important. When you go out where I do for weeks alone, being able to boil water in an emergency is a very serious factor in the quality of my water containers.
In regards to chemical leaeching, theres a thing called google, you can educate yourself on the latest scientific advancements. It works really well at finding references to really common scientific facts like BPA and birth defects, dioxins and heating water in plastic. Of course there is lot of nonsense and hype, but with a tiny bit of media literacy you can find the legitimate research papers. It's pretty cool at how much you can learn if you put some effort into it, but since I'm not your high school teacher, I'll let you work that one out yourself.
Also, titanium should never crack under normal use, even at 15f. If your titanium cracked, you may have got a cheap Chinese knock off, or defective unit. I have dropped my Vargo bot half a dozen times on rocks in warm and cold weather, full and empty. It's very dented but not cracked. I would reach out to Vargo for a replacement.
Tritan contains no BPS. (BP-A, BP-B....etc....other analogs), so and has been shown to have no hormone-analog activity. Thomas G. Osimitz, Melanie L. Eldridge, Eddie Sloter, William Welsh, Ni Ai, Gary S. Sayler, FuMin Menn, Colleen Toole. (2012) Lack of androgenicity and estrogenicity of the three monomers used in Eastman’s Tritan™ copolyesters. "Food and Chemical Toxicology 50" (6), 2196-2205.
Dioxin from plastics (Primarily from PVC, not Nalgene's Tritan)- J Thornton, M McCally, P Orris, and J Weinberg. (1996) Hospitals and plastics. Dioxin prevention and medical waste incinerators. "Public Health Rep 111"(4), 298–313.
Also, buy a Sawyer filter and you don't need to boil for safety but need clean water.....or you could buy a nesting cup that fits around your nalgene....
Next time, bring your "A" game and actually DO THE RESEARCH before you spout nonsense.
http://www.nature.com/ncomms/2017/170228/ncomms14585/full/ncomms14585.html https://www.popsci.com/bpa-free-plastic-bad-for-human-health http://www.nature.com/articles/ncomms14585 https://ehp.niehs.nih.gov/1003220/
In fact Eastman Kodak won a legal injunction against a competitor for fabricating claims about products, including Tritan Copolyester based on one of those studies, but the science held up perfectly well to scrutiny, it was a matter of legal definitions that one them the suit.
Here is a quote from a January 2017 study called "Fluorene-9-bisphenol is anti-oestrogenic and may cause adverse pregnancy outcomes in mice": " In addition, BHPF was also detected in water from two bottles made of Eastman Tritan copolyester, a BPA-free material."
I generally don't bring my A game to the internet because I'm busy with real life, but I think this is enough to show that the science is still being debated and taking caution is a scientifically supportable position. I'm not making anti-vaccine claims here. I think we can all agree that we are pro science here, and I know that I have learned something, so thanks.
Happy new year.
You never once mentioned other plastics, those that claim "BPA or BPS analog free", etc.
Your first set of statements are misleading and therefore contain misinformation....moreso via the later cited articles. This is analagous to saying that our bodies break down food and produces methane, and that methane can an agent of action in suffocation/asphyxiation/pneumonia in humans, 'greenhouse effect', and is even flammable, that we should ingest food of any type.
These misleading and often hyperbolic statements are what people latch onto....they love buzzwords....which you used.
I'm glad you're amenable to learning/researching....but you shouldn't make strong statements about subjects you haven't researched, or use "card stacking" when you do some research, just to show a 'good hand' to make your point.
Seems like you should do more research. This study very clearly shows EA with Tritan and other BPA-free polymers, and that's just one of the very first ones I found with a quick google. There are others.