pks4000
New member
Hey Tee Jay,
Bihydrational roughly translated is It takes two to tangle.
Water and plastic.
Sorry,
CS/BMT
Bihydrational roughly translated is It takes two to tangle.
Water and plastic.
Sorry,
CS/BMT
Nalgene pulling bisphenol-A polycarbonate bottles off market
- Thread starter MichaelJ
- Start date
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wyldeflower
New member
I am still waiting for the DEET (Uncle Ben's) to finish me off.....
I'm not a scientist, but I have an innate sense that DEET is not healthy to us or for our waste water as we wash our clothes that have been doused with DEET. Solvent, nasty stuff.
wyldeflower
New member
Getting back to NALGENE....do the old fashioned scientific looking type semi-transparent white bottles have the same issue of leaching?
DougPaul
Well-known member
That is the point of my question about which kind of plastic. Nalgene makes/has made bottles from three different kinds of plastic.
* HDPE: translucent soft-ish plastic. No BPA. Has been around for a long time. Still works.
* Polycarbonate: hard, clear. Contains and leaches BPA. Recently discontinued.
* Tritan (tm) copolyester: clear, slightly flexible. No BPA. New to the market.
BTW, Nalgene also made/makes HDPE bottles for lab use, which have been reported to contain BPA. The drinking bottles are made from food-grade HDPE which does not contain BPA.
BTW2: HDPE=high density polyethlene
Doug
Sorry Doug that I didn't answer your question sooner. The cracking problems were with linted green polycarbonate bottles. No cracking problems with older clear polycarbonate or the original HDPE bottles. I just recently purchased two new clear Nalgene liter bottles that are marketed as BPA free. I'll see how they hold up with hot water in winter. Thanks.
Chris
Chris
DougPaul
Well-known member
HDPE gets brittle and cracks after 20 or 25 years. Haven't heard of any cracking problems with polycarbonate, clear or colored.
The new clear Nalgene bottles are Tritan.
All three constructions can handle boiling water*. See
http://www.eastman.com/company/news_center/news_archive/2007/english/product_news/071024c.htm
and
http://www.nalgene-outdoor.com/technical/materials/index.html
* hot water increases the rate at which BPA leaches from polycarbonate.
Doug
yvon
Active member
I have change all my Bisphenol-A Nalgene bottles for HDPE.
In Canada if you have buy the Nalgene BPA bottles at MEC stores, They will reimburse you 100%, and you can buy new bottles, for free, BPA free.
In Canada if you have buy the Nalgene BPA bottles at MEC stores, They will reimburse you 100%, and you can buy new bottles, for free, BPA free.
kevinmac
Member
Harvard study backs bottle concern 5/22/09
http://www.boston.com/lifestyle/green/articles/2009/05/22/harvard_study_backs_bottle_concern/
http://www.boston.com/lifestyle/green/articles/2009/05/22/harvard_study_backs_bottle_concern/
WinterWarlock
Active member
Hey Kevin - interesting article, but as you'll see I commented there, it doesn't address the health risks of BPA, only that it is being leached by the bottle (an intersting note is that this study could have been done without using any animal models, human or otherwise - all they had to do was test the water from the bottles). It may actually be good news that so much was found in the urine, as it may simply indicate the body is rejecting it and passing it out...OTOH, BPA may indeed be harmful, but all this study showed was that the bottles leach it.
Grumpy
New member
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Not mine. I have some HDPE bottles by Nalgene that have been in service since before 1974 (i.e., 35 years-plus) and remain flexible, watertight and quite usable.
My biggest gripe about the HDPE Nalgenes always has been that they will pick up and retain flavors from foods and beverages carried in them. Wyler's Lemonade mix was a major culprit once upon a time. My solution? Quit using it to flavor otherwise perfectly good plain water.
G.
DougPaul
Well-known member
The study also was not double blinded--the subjects knew which kind of bottle they were using and thus might have altered their behavior in ways that affected the results.
Doug
WinterWarlock
Active member
Maybe they peed more!!
woodsxc
New member
I have heard that you need to put boiling or near-boiling water in the nalgenes to get the BPA to leach out of the plastic.
FWIW, I do like the indestructibility of the BPA ones and have been disappointed with the flimsier construction of the new nalgenes.
FWIW, I do like the indestructibility of the BPA ones and have been disappointed with the flimsier construction of the new nalgenes.
DougPaul
Well-known member
The report that I have seen says that some BPA leaches into cold water, but more leaches into hot water. It was ambiguous as to whether the amount of BPA leached into cold water was increased after exposure to hot water.
Doug
BlackBuffalo
New member
I'm not overly concerned but, I'm still not sure whether my bottles are part of the BPA variety.
Nalgene with recycling symbol #7 pc.
I'm not going to buy a $20 Sig.
Dave G.
Nalgene with recycling symbol #7 pc.
I'm not going to buy a $20 Sig.
Dave G.
woodsxc
New member
Amen to that. Right on.
DougPaul
Well-known member
yvon
Active member
I replaced my Nalgene with BPA by those and everything is fine.
I take a few of them, with orange color, for the one I put mix in it. The others, I take them clear, for water only.
ALGonquin Bob
Well-known member
I put boiling water into my Nalgenes before every winter hike, so I bought 2 of the new ones.
DougPaul
Well-known member
According to Nalgene (http://www.nalgene-outdoor.com/technical/materials/index.html), you can put boiling water in their HDPE or Tritan bottles. Temp ranges:
HDPE: -100C (-148F) to 120C (248F)
Tritan: -40C (-40F) to 100C (212F)
Their polycarbonate bottles are also rated to handle boiling water, but will leach fairly large amounts of BPA into the water.
Doug
