Robyn Openshaw
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PLASTICS: which ones to avoid, and why!

By Robyn Openshaw, MSW | Nov 14, 2012

You’re likely aware that plastics are harmful to your health. They have phenomenally long half-lives, and don’t break down in the body, causing ongoing damage.

Look on the bottom of your bottle, and see the number in the little triangle. Look carefully at this graphic, because the  numbers aren’t consecutive. The worst grades of plastic are 6, 3, and 7.

A 7 is the worst grade of plastic, and most labeled 7 contain the most infamous chemical in plastics: Bisphenol A (BPA).

Water and other liquids leach BPA. This endocrine-disruptor chemical can do crazy things to your hormones. The U.S. finally banned the chemical in baby bottles, after the European Union and Canada did. Wiki says a study found BPA in 96% of pregnant women. It’s been linked to obesity, breast and prostate cancer, and ADHD.

Please don’t use old baby bottles or any other plastic that isn’t BPA free that comes into contact with your food or water. More and more companies are making their plastics without BPA, including Blendtec’s blender jars. But our FDA continues to support the use of BPA in cans, including drinks, and infant formula!

Another chemical to avoid is PVC (polyvinyl chloride), known as vinyl, which contains phthalates, known to cause birth defects in baby boys, testicular cancer, infertility, and asthma. PVC plastics are labeled with the 3 triangle.

So, anything you use that’s plastic, make sure it’s labeled 1, 2, 4, or 5.

Our GreenSmoothieGirl bottles, of course, are BPA free, vinyl free, and phthalate free.

Posted in: Detox, Food Industry

13 thoughts on “PLASTICS: which ones to avoid, and why!”

Leave a Comment
  1. The big question I have is what are they replacing the BPA with?

  2. Shellie says:

    That’s the same question I just had (as Laura). I wonder what happens when they recycle everything? I don’t imagine they take the time so sort that finely. I’m guessing they just aren’t considered “pure” plastics anymore and can’t be classified as such with a number.

    Thanks Robyn, as always, for making us think about what’s going on around us!

  3. Jody says:

    I noticed on your new drinks in the group buy that they contain green tea leaf, one listed as decaf. Can you comment on its inclusion, please. Some religions prevent tea as part of their health code.
    Thank you so much.

  4. Leana says:

    BPA is in the lining of most canned goods, tomatoes being the worst because of the acid content. Trader Joe’s has many BPA-free canned goods, but not all-ask. BPA is also in water filtration pitchers-unless it says otherwise, also in the plastic parts of food processors-except for Breville. I recommend a site called

  5. Did you know you can check your body burden and tissue levels of BPA and phthalates with an at home lab test?

    Check out:

  6. robyn says:

    Shellie, Laura, I have the same question although I think very few plastics are actually recycled. So, use glass or stainless steel where you can, although for portability and breakability reasons, plastics are still going to be part of our world, so now you are educated about which ones are known to have leaching, dangerous chemicals.

    There is no caffeine in my drink mix. The LDS code takes no issue with herbal hot tea. So by that logic a no-caffeine green tea extract should be fine as well.

  7. Andy says:

    It’s so difficult to get to a lifestyle consisting of all natural materials, isn’t it? Petro-chemical products are just so prevelant it’s unbelievable! I really wish they’d legalize the growth of hemp (actual hemp – not talking about marijuana here) and use hemp oil to make plastics. The US military was actually starting to make plastics from hemp oil back in the 1800’s, and while I’m sure all the processing it goes through makes it not as toxin-free as glass, im sure it would still be much better than petroleum-based plastics.

  8. Denise says:

    I checked with Ziploc and their bags are #4 and containers are #5. Just sharing information. They said you could clean out used bags and recycle them at grocery sack recycling centers at grocery stores.

  9. Kate says:

    What about the plastic in the Excalibur and teflex sheets? Would stainless steel dehydrator be safer? The food is exposed for long periods of low heat on these plastic dehydrators…

  10. kitten says:

    While we are on the subject of the dangers of plastics have you considered the dangers of synthetic clothing? For a comprehensive review of the topic Dr. Brian Clement and wife Dr. Ana Marie Clement, directors of Hippocrates Health Institute, have written the book “Killer Clothes” that reveals the dangerous toxins we are absorbing through our skin, our largest organ!

  11. marilyn says:

    Please bring a Green smoothie class to Greenville SC
    Thank -You,

  12. josie says:

    Hi I just wanted to ask with this info you have about plastics not being safe aren’t you concerned about your excalibur dehydrator? I have been going back and forth with which one to get and I have to be honest the plastic in the excalibur worries me a great deal .
    So I’d love to hear you take on it.

  13. josie says:

    Hi I tried to leave a comment once but guess it didn’t work so I’ll try again cause I would really like your opinion on this.
    I am searching for the right dehydrator to buy. I really like the Excaliburs but I take issues with the plastics they are made from.
    So I have been researching stainless steel ones. Not sure how much safer they would really be but still think their safety is better than plastic ones. Anyway I wanted to see if I could get your take on materials that dehydrators are made from. And your opinion on their safety. Thanks jm

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