All Quokka brand products are BPA free and have passed all the required quality controls according to European Union regulations for their category High quality anti-leak closure, even when in direct contact with coffee, water or tea to avoid accidental spills and maintain the temperature. Our bottle is insulated thanks to the double-walled vacuum insulation that keeps the internal temperature regardless of the outside temperature. Drinks stay cold for up to 18 hours and hot for up to 12 hours EASY MAINTENANCE: Fully corrosion resistant without loss of quality. No condensation. Does not absorb odours or tastes. Rinse the water bottle thoroughly after use and dry it well (not dishwasher or microwave safe) By purchasing a Quokka bottle, you are purchasing a completely unique design piece. All of our bottles are patented and have undergone the necessary tests to provide you with the highest quality standards and comply with European regulations in their category. Because Quokka is far more than just a bottle, it is design and quality for your life