made from two layers of recycled paperboard that are spiral wound and a highbarrier liner, the cans lock out moisture and oxygen that could compromise the nutritional integrity of the powdered infant formula. they also keep the powdered product from clumping so that it quickly dissolves when it&39s time to prepare a bottle. it has sealed safe peelable membrane closure with a metal rim seamed onto the can&39s end and an easygrip ring pull that opens the can easily. the new sealedsafe opening system is much easier to open, while the custom overcap and scoop help ensure parents use the right amount of formula and provide their babies with proper nutrition.