Friday, May 30, 2008
That blasted BPA is back in the news again, and this time it isn't good. This post isn't about congress acting about BPA, or the Kid Safe Chemicals Act. Nope.
This is about BPA in canned food. As I reported a few months ago, BPA is in the lining of canned foods, and the Globe and Mail has found high levels of BPA in the canned foods they tested.
How high are the levels? Twice that of what has folks ditching their old plastic baby bottles and nalgene water bottles. The highest amounts were found in foods often consumed by children, such as tomato sauce. Apparently, more leeching is likely to occur with acidic foods like tomatoes. Let's put this in perspective. BPA containing plastic baby bottles leech 6 parts per billion of BPA into milk. The Hunt's Tomato Sauce they tested had 18.21 parts per billion (yes, three times the amount in bottles).
According to the article, the test results are also conservative. The technician who ran the test said they used water, which is less likely to pull BPA from the lining of a can.
And here's something I didn't know. Most canned foods are heated up to over 100 degrees after the food or beverage has been added, to kill microbes, but thus increasing the amount of leeching of BPA into the food.
According to the Globe and Mail, "Less than half a cup of tomato sauce or a cup of chicken noodle soup would exceed the lowest dose found in recent research to have an adverse effect on animals. That was a 2005 experiment at Tufts University School of Medicine in Boston on mice exposed to amounts far below those detected in the Globe/CTV testing."
That quote stopped me in my tracks. I still feed my girls canned Annie's spaghettios and ravoli. I don't think I will do this anymore.
I've been trying to buy tomato sauces in glass jars, only buy Eden foods beans, and buy soups in other types of containers. This is a problem, however, particularly with soups, because buying them in those waxed containers has much more of an environmental impact, since they aren't recyclable.
Read the Globe and Mail article linked above to see the list of canned foods they tested and the amounts of BPA they contained. Thanks to reader John (read his post about this here) who tipped me off on this article in the Globe and Mail.