It is necessary to ensure that the flow of water, milk or food is adequate.
In no case is it advisable to increase the size of the hole, since this suppresses the feeling of tiredness (necessary for the satiety of the infant) and promotes the development of bad digestions, with vomiting and abdominal pains.
Special care must be taken with the state of conservation and hygiene, sterilizing them periodically and renewing them when necessary.
The bottle should be prepared by adjusting the milk and water ratios to the doses prescribed by the pediatrician or as specified by the manufacturer.