Green Tip of the Week: Safe and Unsafe Plastics

Plastics are typically classified by a number from #1 to #7, each number representing a different type of resin. That number is usually imprinted on the bottom of your container; flip it upside down, and you’ll see a recycling triangle with the number in the middle.

The plastics to avoid are numbers 3, 6 and 7. Why?

#3 (polyvinyl chloride) contains softeners called phthalates that interfere with hormonal development; its manufacture and incineration release dioxin; and vinyl chloride, its primary building block, is a known human carcinogen.

#6 (polystyrene) can leach styrene (considered a possible human carcinogen) into food; and it may also disrupt hormones or affect reproduction.

And #7 (mainly polycarbonates) is composed of a hormone-disrupting chemical called bisphenol A.

The healthiest plastics are numbers 2, 4 and 5. They transmit no known chemicals into your food and they’re generally recyclable. #1 is safe for single use (for example, in disposable water bottles), but don’t reuse.

One Response to “Green Tip of the Week: Safe and Unsafe Plastics”

  1. annshep@swbell.net Says:

    Thought you’d like to read this!! Ann

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