BPA-free thermal paper is available and some chains have switched. For example: Costco warehouses in the U.S. and Canada have changed their receipt paper so that it is phenol-free. This means it does not contain Bisphenol A (BPA) and Bisphenol S (BPS), which have been linked to human health concerns. - https://www.costco.com/sustainability-chemical-management.ht...