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January 24, 2009 By Jen 6 Comments

Is #5 plastic safe?

Dear EarthTalk: It seems like more products are being packaged in #5 rather than #2 plastic today, and my local recycling agency won’t take #5. I’ve also heard that #5 plastics are more toxic, which concerns me more than the recyclability issue. Which plastic is the better choice?

— Janice Shaffer, Chillicothe, MO

Polypropylene, which is marked with #5 inside the “chasing arrows” symbols on the bottom of plastic containers, is a lighter-weight plastic resin commonly used in dairy and deli packaging. Some companies have chosen this lighter plastic because it has a lower environmental impact to produce and transport.

High density polyethylene (HDPE), which is marked with #2, is a stiffer resin used to package cleaning products and also some dairy products. The most widely used resin type for consumer food products is polyethylene terephthalate, or PETE, which is marked with #1 and used for soda and water bottles.

According to Consumers Union’s “Greener Choices” website, all three of these plastics are considered safe for their original use, though any of them can leak toxins when reused repeatedly. And all three can be recycled, though a lagging market leads some recycling locations to limit what they’ll accept. There is also concern that widespread plastics recycling encourages more use of plastics, and that efforts would be better spent getting consumers to buy fewer plastic-encased products. Some even criticize the chasing-arrow labeling system for implying a higher level of recyclability than is presently available.

5plasticWhy is a lighter-weight plastic better? According to dairy company Stonyfield Farm, their #5 one-quart yogurt container uses 30 percent less plastic than a #2 cup. Since it takes less material to make a thinner container, it reduces the amount of resin that needs to be manufactured. Stonyfield estimates that the use of #5 over #2 prevents the manufacture and disposal of more than 100 tons of plastic per year.

But savings comes from more than manufacturing. The heavier #2 plastics require more energy to transport. It’s not only getting the yogurt from Stonyfield’s plants to your store, but also getting the containers from the plastics manufacturer to their dairies. In fact, the company cites a packaging study by the Boston-based Tellus Institute which found that 95 percent of the environmental costs of packaging lie in production and less than five percent are associated with disposal.

According to the website Earth 911, a national directory of recycling outlets, the best thing consumers can do is to choose items with less packaging and buy in bulk when possible. So the next time you reach into the dairy case, grab the quart or gallon-size yogurt instead of the single-serving cups. Then, make sure you recycle only the allowable plastics so you don’t contaminate the lot. While recycling is important, it may be okay to landfill a product’s packaging if it was created with an environmentally responsible plan.

Besides seeking alternatives to plastic packaging, consumers can affect overall plastic use by supporting legislation that would require manufacturers to take back their plastic packaging, which would encourage “cradle-to-grave” practices. Further, you can support legislation that mandates more use of recycled plastic content, which would reduce the overall amount of virgin plastic produced in the first place.

CONTACTS: Stonyfield Farm’s Earth Actions, Consumer Reports’ Greener Choices, Earth 911.

GOT AN ENVIRONMENTAL QUESTION? Send it to: EarthTalk, c/o E/The Environmental Magazine, P.O. Box 5098, Westport, CT 06881; submit it at: www.emagazine.com/earthtalk/thisweek/, or e-mail: earthtalk@emagazine.com. Read past columns at: www.emagazine.com/earthtalk/archives.php.

bitzcelt, courtesy Flickr


Filed Under: Random Green Tagged With: environment, environmental impact, Green, greener choices, high density polyethylene, high density polyethylene hdpe, plastic containers, plastic resin, plastics recycling, polyethylene terephthalate, recycle, recycling

About Jen

Jennifer Smith provides Green Virtual Assistant Services to grow small businesses paperless and sustainable providing various e-services. Her passion is customizing StudioPress Themes for WordPress for her awesome clients. View her portfolio here.

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Comments

  1. Green Bangor Shopping says

    July 27, 2009 at 8:40 pm

    It is amazing to me how many people drink bottled water these days, and the amount of plastic that is required to provide bottled water to north america and europe. I hope that our recycling can eventually become more efficient and that we can eventually reduce our dependency on plastics altogether.

  2. Green Bangor Shopping says

    July 27, 2009 at 8:40 pm

    It is amazing to me how many people drink bottled water these days, and the amount of plastic that is required to provide bottled water to north america and europe. I hope that our recycling can eventually become more efficient and that we can eventually reduce our dependency on plastics altogether.

  3. Mike says

    June 30, 2009 at 2:35 pm

    I avoid carrying plastic bags now-a-days. Instead have a big shopper bag and small handy coir bags with me always to use while shopping. I also return the bag given during shopping so that they could also save some pennies! – Mike
    .-= Mike´s last blog ..Science and it’s quirks =-.

  4. Mike says

    June 30, 2009 at 2:35 pm

    I avoid carrying plastic bags now-a-days. Instead have a big shopper bag and small handy coir bags with me always to use while shopping. I also return the bag given during shopping so that they could also save some pennies! – Mike
    .-= Mike´s last blog ..Science and it’s quirks =-.

  5. Anna says

    January 31, 2009 at 8:20 pm

    You can now recycle the #5s at participating Whole Foods. Check out the Preserve site for details!!

    The one thing that I wonder about is all #5 created equally? A flower pot which is a #5 is so much thicker and heavier than a #2 flower pot that cracks if you stare at it wrong. So, I wonder if Stonyfield uses a different manufacturing process for their lightweight cups?

    Anna http://www.green-talk.com

  6. Anna says

    January 31, 2009 at 8:20 pm

    You can now recycle the #5s at participating Whole Foods. Check out the Preserve site for details!!

    The one thing that I wonder about is all #5 created equally? A flower pot which is a #5 is so much thicker and heavier than a #2 flower pot that cracks if you stare at it wrong. So, I wonder if Stonyfield uses a different manufacturing process for their lightweight cups?

    Anna http://www.green-talk.com

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