We work hard to design safe and sustainable products that are made for life. All Cheeki products are made from food safe, BPA-free, toxin-free 304 Food Grade stainless steel. Aluminium bottles require an inner lining in order to protect the metal from leaching into the contents – making it unsafe to consume. The aluminium lining is commonly made out of plastic resins, ceramic or baked-on epoxy, both of which have been known to leach BPA and other harmful chemicals or can get scratched, exposing the aluminium underneath. Stainless steel is the most healthy, safe and durable material for our products.