Do You Know Your Cans have Liners?

Last December I wrote a post, “Are Some Nalgene Bottles Bad“, that highlighted the current research with Bisphenol-A (BPA) which is used in the manufacture of epoxy resins the resulting health concerns.

I found it noteworthy this week that Nalgene announced they will stop using the plastic that contained BPA in their bottles. They have introduced a new line of bottles made from a relatively new plastic called Tritan copolyester. This could be a tipping point since BPA is in more than just Nalgene Bottles.

Did you know that the interiors of most cans have been coated with an epoxy resin that is made from BPA? This resin extends the shelf life of the contents and prevents the metal reacting to the contents in the can. In a March of 2007 survey by the Environmental Working Group found BPA in over half of 97 cans of name-brand fruit, vegetables, soda, and other commonly eaten canned goods.

“Of all foods tested, chicken soup, infant formula, and ravioli had BPA levels of highest concern. Just one to three servings of foods with these concentrations could expose a woman or child to BPA at levels that caused serious adverse effects in animal tests.

For 1 in 10 cans of all food tested, and 1 in 3 cans of infant formula, a single serving contained enough BPA to expose a woman or infant to BPA levels more than 200 times the government’s traditional safe level of exposure for industrial chemicals.”

Apparently, researchers had been unable to develop an alternative can lining material without BPA that performs as well. I have one prediction. BPA is on its way out of our cans and someone is going to get rich developing that alternative lining. You can count on it.

Sources:
Bottle Maker to Stop Using Plastic Linked to Health Concerns
Bisphenol A: Toxic Plastics Chemical in Canned Food

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