Laboratory tests commissioned by the Evironmental Working Group (EWG) in 2010 found that 40% of paper receipts contained nearly 3% pure BPA. Swiss scientists found that the BPA readily transfers to fingers, penetrates the skin, and is absorbed in the blood.
As you might expect, retail workers who daily handle cash register and credit card receipts had the highest levels of BPA in their bodies – 30% more than other adults.
Not all receipts are coated with BPA, in fact, 60% were not, however, you cannot tell which is which. Ask the manager of your favorite stores if their receipts are printed on paper free of BPA.
The source of this information, the EWG, was dated July 2010, so the situation may have changed. All the more reason to inquire of your favorite stores.