Question: are klean kanteen bottles safe?
Answer: Klean Kanteen was created in 2004 as a safe and healthy solution to plastic water bottles and all Klean products are BPA-free. ... We use BPA-free polypropylene (pp#5) to make some of our caps, but we do offer stainless steel cap options like our Stainless-Steel Loop Cap for those that prefer a plastic-free product.