You must remove the safety catch and remove the cover. Also remove the foil covering the milk. Take the spoon and use it to level the amount of powdered milk to use. After putting the milk in the bottle, close the can properly again. The easy dosing system contains a spoon compartment, which facilitates the preparation of milk. You should wash your hands and sterilize the utensils you will need well before preparing the milk. In order to automate the entire process, always follow the instructions on the infant milk package. Prepare one bottle at a time and give it to the baby immediately. Do not reuse milk. Discard any liquid that the baby has left undrinked. This product must be kept in cool, dry places and lasts for three weeks after opening.