Reader caution -- The quoted April 2, 2012 article by LAWeeky and NRDC, are hardly what I would consider the most reliable sources on the planet.
BPA, a synthetic compound that mimics estrogen, is used to harden polycarbonate plastic and to make protective epoxy resin linings for cans. Plastics marked PC, "other" or number 7 may contain BPA. Studies have shown that BPA can leach out of packaging and into foods, especially with acidic contents like tomatoes.... However
Nearly all U.S. grocery stores (including Trader Joe's and Whole Foods) now offer a confusing mash-up of products with and without BPA, so it's best to contact a company's customer relations department for questions about specific items.
, the article goes on to cite a U. C. Berkley scientist with an interesting point (emphasis added) --
One problem the food industry faces is developing safe alternatives to BPA. Dr. Megan Schwarzman, a family physician and research scientist at the UC Berkeley School of Public Health, told L.A. Weekly this morning in an email: "There is a broader issue at play here as well that I think it's critical to bring into the conversation. While many manufacturers have switched out of BPA (and market 'BPA-free' products), the substitutes are often close chemical relatives such as BPS (Bisphenol S) or BPF (Bisphenol F). And there's little reason to suspect these compounds are any safer than BPA
Schwarzman added: "We need to remove BPA from as many uses as possible, as soon as possible, but we must simultaneously ask for information on the chemical's substitutes. And wherever possible, we should look to replacement materials that don't simply rely on another chemical whose safety is unproven."http://blogs.laweekly.com/squidink/2012 ... bpa_ta.php
So, it would appear that a can labelled "BPA-free" might not be a guarantee of safety and that prudent BPA reduction actions like those in the Consumer Reports article cited in an earlier post might still be wise.
Reducing canned (and aseptic pack) food usage, storing and cooking in glass or stainless steel, and avoiding aluminum and carbonate water bottles seem like a prudent course of action.
Mayo clinic RD advice on BPA -- http://www.mayoclinic.com/health/bpa/AN01955