Laken water bottles are made in Spain to the highest environmental standards in a ISO 9001 certified factory .Laken is a family owned business building bottles for over 90 years. The lining material is BPA free, imparts no taste and can handle any type of hot or cold beverage; sports drinks, water, juice, soda, anything can go into a Laken bottle. The exterior is finished with a polyester powder coating, which is VOC free. All bottles are dish washer safe. With their wide mouth openings there is no need for hand washing with special tools. The threads are external so no chance of wearing off the interior coating exposing bare aluminum