by Catherine Haug, January 15, 2011; updated January 16, 2011, January 23, 2011, and February 8, 2011
Thanks to Shelli R. for this article on Reality Blog: Dude, Isn’t that Wax on Your Apple? (1), and 1-minute You Tube Video: Plastic Lettuce (3). She researched this after finding it on red leaf, bib, and romaine lettuce at the Safeway in Polson.
This is not the all-natural, edible wax typically applied to apples – carnauba or shellac – which is easily washed off with cold water. This is synthetic plastic made from petroleum and other questionable sources as well as animal sources. And it’s applied to more foods than apples. You can find it even on lettuce, such as the head of Romaine in the video.
It is possible that what may look like an applied film on lettuce may actually be a natural phenomenon called “epidermal peel” or “rib raw” created by the lettuce to protect its rib (stem) from damage resulting from temperature changes, especially frost, according to Tom, the produce manager at Bigfork Harvest Foods (Jan 16 update). This phenomenon is similar to chapped lips resulting from cold weather, according to Dr. Mercola’s recent article: That isn’t wax on your Organic apple (4) (Feb 8 update).
1/16 & 1/23/12 updates: See What about organics section below.
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