Plastic Wrap 101

Plastic Wrap.  Can you think of a more mundane purchase?  Well, it might come as a surprise to learn that all plastic wrap is not the same and there are reasons to be choosy when you shop.

Some brands of plastic wrap contain plasticizers to make the wrap more flexible.  These PVC-based cling wraps contain a liquid plasticizer called DEHA (Di-ethylhexyl).  While the FDA considers it safe for food use, numerous studies have confirmed that DEHA can leach out of plastic wrap and into food.  Since DEHA is a possible human carcinogen that affects the liver in particular, it might be a good idea to avoid it.  Foods like cheese and deli meats are of the most concern because they are capable of absorbing higher quantities of DEHA.  Also, vinyl chloride, the main building block of PVC, is a known human carcinogen.  Apparently, there's a lot of controversy about whether plastic wrap is really harmful or not, but my feeling is - stay on the safe side - especially when kids are involved. 

So, just look for the brands that say 'PVC-free' or 'no plasticizers', right?   Not so easy, I'm afraid.  Most brands don't say what they're made of because - guess what - they don't have to.  However some brands are catching on to consumer's concerns so it's worth a look at the package.

According to The Green Guide's Plastic Container Report and other sources, here are the brands of plastic wrap to avoid:

• Reynolds Wrap
• Polyvinyl Films All-Purpose Food Wrap

and these are the brands that are OK (they are made of #4 LDPE plastic instead of PVC):

• Glad Cling Wrap
• Saran Cling Plus
• Best-Yet Clear Plastic Wrap
• Diamant Food Wrap
• Natural Value Plastic Wrap (carried at Whole Foods and many co-ops, this brand also uses recycled paper boxes)

I wonder about all the store brands myself.  I tried to find out if Costco brand was PVC-free but was not successful.  Anyone know?

A few more tips:

• avoid using plastic wrap in the microwave, but if you do, make sure it does not touch the food
• use paper towels in the microwave instead of plastic
• since commercial plastic wrap is likely to be PVC-based, consider re-wrapping your purchases after you get home and even slicing off the top layer that was in contact with the plastic (OK, have any of you ever actually done that?)
• store products in glass or ceramic containers instead of plastic

Whew!  That's a lot about a pretty boring (but important!) subject.

Comments

[The Not Quite Crunchy Parent]

Terrific information. I hadn't considered that! BTW - In general, store brands are made by whatever company makes the brand name product the store carries. It's kind of a trade off...the brand name company makes more or less no money off the "Kirkland" brand but gets to make money on their branded product....not sure what brand plastic wrap Costco carries....

[Mefuza]

Thanks for the information. Good to consider.

[Anna Martin]

Thanks for the plastic wrap info. I must admit that I'm not the best when it comes to lifting the plastic off of my food when it's in the mircowave.

What are the risks if I were to use one of those hard plastic covers (that go over your plate)?
On one hand you don't have to deal with plastic wrap, nor do you have to buy plastic wrap for this purpose,
however...
on the other hand this plastic hard cover might be toxic anyway.
Anyone have any thoughts on this?

[Mindful Momma]

Good question Anna. I haven't read anything about the hard plastic covers but my guess is that it would be better than plastic wrap. See if there is a recycling code on the cover. The types of plastics that are known to leach potentially bad chemicals into food and drinks are #3, #6 and #7.

[Anna Hackman]

I would really be curious about whether microwave covers are safe because I went to look at mine and there is not a number on it. It is dated 1986! I tried to see if anyone has spoken about this but all I see is info saying don't use plastic period.

In my search, I did see this great pdf file from checnet.org on some of the different plastic products out there and which numbers they are. (dated 2001)

Curiously, they distinguished saran wrap into saran wrap with cling plus (#4)and saran classic, the later being pvc. I have no idea if they still carry different saran wraps anymore. Does anyone know?

Great post, mindful momma. Even though you might think this is boring I found it very useful information!

http://www.checnet.org/healthehouse/pdf/plasticchart.pdf

anna www.green-talk.com

[MollyB]

Thanks for the info! I'd never thought of using paper towels instead of plastic wrap in the microwave - not that I should be using the microwave ...

[kendra vogt]

Some safe alternatives to plastic wrap are butcher paper, waxed paper and cellulose bags

[2 player flash games]

Terrific information. I hadn't considered that! BTW - In general, store brands are made by whatever company makes the brand name product the store carries. It's kind of a trade off...the brand name company makes more or less no money off the "Kirkland" brand but gets to make money on their branded product....not sure what brand plastic wrap Costco carries....
+1