It doesn't matter whether the tool is new or old; But the temperature of the liquids has the biggest effect on how much of the dangerous chemical is released, say University of Cincinnati scientists
In regards to exposure to bisphenol A (BPA) originating from polycarbonate plastic bottles, it does not matter whether the tool is new or old; But the temperature of the liquids has the biggest effect on how much of the dangerous chemical is released, say University of Cincinnati scientists.
Dr. Scott Blatcher and his research team found that when the same new and used polycarbonate drinking bottles were exposed to boiling water, bisphenol A, an estrogen mimic, was released 55 times faster than without exposure to the boiling water. "Previous studies have shown that if baby bottles made of polycarbonate plastic are repeatedly scrubbed, washed in the dishwasher and boiled, they release the chemical bisphenol A. These studies indicate that bisphenol A may be released from various plastics made of polycarbonate," explains Baltcher, associate professor of pharmacology and cell biophysics and author of the aforementioned article. "However, we wanted to know if "normal" use results in increased release from the same bottles we all use, and to identify the most important factors that affect this release."
"Guided by questions that arose from the community of parents, mainly, we directly approached experiments based on the normal use made by the various consumers of the same plastic water bottles and showed that the only major change in the amounts released is due to the temperature of the liquid - bottles that have been reused even for nine years Release the same amount of chemical as brand new bottles." Bisphenol A is a synthetic chemical, one of many, classified as disrupting the endocrine system (the body's hormone secretion system), and changes the function of this system by imitating the body's own natural hormones."
"Hormones are secreted by the endocrine glands and are used in different and varied roles in the body. The chemical, which is very common in products such as: reusable water bottles, food storage tools, water transfer pipes and dental devices, has shown a disruptive effect on the reproductive system and brain development in experiments in the laboratory. "There is very solid scientific evidence indicating the harmful effect of even the smallest amount of the chemical in experiments conducted in laboratories and in the field," Belcher explains. "In the scientific community there is a very strong suspicion that this chemical has harmful effects in humans as well." The research team examined used polycarbonate water bottles collected from a local gym and new bottles of the same types purchased from the original manufacturer."
“All bottles were exposed to seven days of tests designed to simulate normal use during backpacking, mountain climbing and other outdoor activities. The researchers found that the amount of the chemical released from both new and old drinking bottles was the same - both in the amount and the rate of release - when filled with cold or lukewarm water. However, much higher amounts of the chemical were released when all the different types of bottles were exposed to boiling water for a very short time. "Comparing the release rate from those bottles, the release speed in hot water was 15-55 times higher," explains the researcher.
Before exposing them to boiling water, the release rate of the chemical was in the range of 0.2-0.8 nanograms per hour. After exposure, the rate increased to a range of 8-32 ng/h. The researcher emphasizes that it is not yet clear what the exact amount is harmful to a person. He advises consumers to consider how cumulative exposure to environmental conditions may harm their health. "Bisphenol A is just one of a long line of estrogen-like chemicals that humans are exposed to, and scientists are still trying to understand how these endocrine-disrupting substances - including natural phytoestrogens that are derived from soy and are often considered healthy - affect human health," he says. "However, a growing body of scientific evidence indicates that it may cost us our health." The study was published in the January 2008 issue of the journal Toxicology Letters.
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Concerned parents use only glass bottles to feed their baby. It is not a big expense
And save you worries.
Mineral water bottles have a marketing deadline, and water doesn't spoil? Rather, I mean the plastic that releases dangerous and unhealthy substances into the water inside, it is better to use eco bottles and fill them with water, cold water, cold tea, etc.
There are excellent eco-bottles in different sizes from the Tapvar company, you can purchase them from my friend from the company sampler in Jerusalem 025375437 and enjoy without fear and thus maintain your health.
If anyone knows where to buy a good stainless steel bottle, I would love to know (-:
The aluminum bottles are just as dangerous!!! Aluminum cannot come into contact with liquid, so there is a yellow plastic layer inside the bottle. You wanted to avoid the plastic and you got it inside the bottle.
I recommend stainless steel bottles, they do not secrete dangerous substances and have no aftertastes in the water.
I recently bought one for my son and it looks great.
I wanted to point out that the above article panicked my mother and she killed me until I bought a pair (!) of large "safe" plastic bottles for just over NIS 100.
After a thorough examination it turned out that my good old used mineral water bottle is made of harmless polyethylene (PET) ("until proven otherwise").
In conclusion .
The panic cost me money but I also gained knowledge. And in fine bottles. So I feel I have gained.
Good Day.
ethical,
"Because they are simply made of dangerous substances for the human body such as petroleum"
Absolute nonsense - sorry for the tone of voice.
Most of the plastic utensils and bags at home are made of completely non-toxic materials: carbon and hydrogen. These two substances are the main component of the human body.
These plastic materials (polyolefins) do not secrete any toxins under any circumstances.
It's a shame to create unfounded hysteria.
First of all, Ronan's supposedly accurate answer contradicts what is said in the article!
Second thing, is there any doubt that if we check all our plastics at home, they release toxins in contact with heat. And not necessarily bisphenol A. because they are simply made of dangerous substances for the human body such as petroleum.
I was surprised to read in another article that putting a water bottle in the freezer also excretes toxins!
Let's avoid as much as possible. there's nothing to do. In any case, we have already stopped with the small water bottles.
I bought one of the expensive bottles made of aluminum for my 5 year old son. It seems to me that it is much better than plastic.
Ronan: Are you sure you don't work for a bottle company or another plastic product manufacturer? You contradict things from the article among other things (at least regarding the quantities).
I don't think it's right to tell people for certain that they don't need to worry about the amounts of BPA being released...
In addition, if crossing the road is more dangerous (and in our country it doesn't mean much) it's still not worth taking the risk and drinking Bisphenol A... especially if it can be avoided...
Hello to all concerned...
Since there is a lot of ignorance and disinformation (for marketing reasons) on the subject, I decided to answer here for all of you...
What kind of plastic is it?
>>> Polycarbonate.
Only on the foamed plastic? (Like disposable cups for coffee or Styrofoam)
>>> No, it's polystyrene.
Or is it also about hard plastic like aquatic ones
>>> No, it's usually polyethylene or polypropylene.
Half liter bottles
>>> neither. I assume you mean soft drink bottles which are usually made of PET.
Kettle (for most of us the kettle is made of plastic)
>>> It's hard to say, there are all kinds of types, but I guess the vast majority of them are not made of polycarbonate.
Plastic microwave food heating utensil?
>>> These are usually made of polypropylene.
>>> What is not made of polycarbonate is not relevant to the current discussion on bisphenol A!
Can the author of the article refer to an electric kettle made of hard plastic, I am very worried
>>> you can relax. Even if your kettle was made of polycarbonate, the amounts of bisphenol A it was able to release into the water are orders of magnitude smaller than the amounts required, according to the studies, to cause health damage in humans.
There are plastic containers that it says can be used in the microwave. Do they also release BisA?
>>> Probably not, I don't know any tools for use in the microwave that are made of polycarbonate.
Baby bottles are supposed to be sterilized by boiling water, is it possible to use the bottles after they have cooled?
>>> Of course.
Do you need to wash them in cold water?
>>> If you wash them in water that has not been sterilized before (or at least boiled) you will probably "contaminate" them again (with germs), then all the effort is a waste.
Is it necessary to wait a while after boiling for the release of the BPA to finish? How long?
>>> Totally unnecessary. A minute level of BPA release will almost always occur, however, the levels released are very, very low to begin with.
The chemical, which is very common in products such as: reusable water bottles, food storage tools, water transfer pipes and dental devices, has shown a disruptive effect on the reproductive system and brain development in experiments in Israel
>>> Bisphenol is "common" only in polycarbonate, and as far as I know polycarbonate is not very common in all the above mentioned applications. In addition, the levels of free bisphenol in polycarbonate products are very low to begin with - most of the bisphenol reacts and turns into polycarbonate during the polymerization process, and the small residues that remain usually evaporate / burn in the process of creating the product from the raw polycarbonate (injection, extrusion, etc.).
Is this also true for Brita bottles?
Maybe you don't fill them with hot water - I hope you use them for a long time.
As far as I'm aware Brita jugs are indeed made of polycarbonate (and I may be out of date). In any case, in light of all the explanations above, the level of risk is negligible in my opinion. It is certainly much less dangerous to cross the road...
They say that only a bottle of Bifri does not contain bisphenol and therefore it is only called that, but this is not true. I bought a Tupperware bottle and it is made of polypropylene and it does not release
the material because polypropylene doesn't have this poison and it's not only in Tupperware also in Mam's bottle and there are more so as I understand there is a problem with the poison but they also take a ride on it to make money really disgusting!!!!!!!!!!!111
>>> I agree with two things: a. Bottles made of polypropylene (and in fact almost any plastic that is not polycarbonate) cannot release bisphenol. B. Someone here is making money off of this mess. Of course, no commercial company has a monopoly on non-polycarbonate baby bottles...
And be healthy (and calm) to me.
It is said that only a bottle of Bifri does not contain bisphenol, which is why it is only called that
But this is not true. I bought a Tupperware bottle and it is made of polypropylene and it does not release
the material because polypropylene doesn't have this poison and it's not only in Tupperware but also in the bottle
Mom's and there is more then as I understand there is a problem with the poison but they also take a ride on it
For making really nasty money!!!!!!!!!!!111
Is this also true for Brita bottles?
Maybe you don't fill them with hot water - I hope you use them for a long time.
Can someone answer about the plastic electric kettle? worried…
The chemical, which is very common in products such as: reusable water bottles, food storage tools, water transfer pipes and dental devices, has shown a disruptive effect on the reproductive system and brain development in experiments in Israel
The microwave ones are polypropylene as far as I've come across.
No, we are not talking about foam (polystyrene), not soft drink bottles (polyethylene), not food boxes (polypropylene), but only polycarbonate, which is the hard and transparent plastic like glass. At the bottom is usually marked the type together with the recycling symbol.
Baby bottles are supposed to be sterilized by boiling water,
Can the bottles be used after they have cooled?
Do you need to wash them in cold water?
Is it necessary to wait a while after boiling for the release of the BPA to finish? How long?
There are plastic containers that can be used
in them in the microwave. Do they also release BisA?
Can the author of the article refer to an electric kettle made of hard plastic, I am very worried
The cool commenter - specifically in the article - not necessarily the foamed plastic, but - soft drink bottles, baby bottles, plastic food boxes and more...
What kind of plastic is it? Only on the foamed plastic? (Like disposable cups for coffee or Styrofoam)
Or is it also about hard plastic such as water bottles, half liter bottles, a kettle (for most of us the kettle is made of plastic), plastic microwave food heating utensils?
If it is also about the hard type, then it requires a sharp and extreme change in the way of life.