Even though Health Canada banned polycarbonate, or BPA, baby bottles and liners last October, scientists have discovered "BPA free" products that still contain traces of the banned chemical hormone.
Scientists tested nine plastic bottles made with non-polycarbonate plastic -- the so-called "BPA free" bottles.
Despite recommendations not to, many parents still microwave the bottles.
Researchers found the average BPA concentration in the "BPA free" bottles after 10 days at high temperatures was similar to the levels in BPA bottles after 24 hours at lower temperatures.
The findings were published in the journal Food Additives & Contaminants.
After this study, the scientists concluded that BPA free bottles may be considered as an appropriate alternative to BPA bottles.
Leading manufacturers are challenging the findings -- saying their own tests find no traces of BPA in their products.
The head of Thinkbaby blames Health Canada, saying maybe its testing equipment just isn't clean.
With a report from CTV British Columbia's Chris Olsen