In order to qualify for a license, a gym teacher must have a minimum of a bachelor's degree and pass competency examinations covering both general education and topics pertaining to their area of specialty. After a teacher is licensed, they must also meet continuing education requirements set by their state.
Mistake #3: Keeping mixed formula out too long. Formula that is sitting out at room temperature must be thrown away after 1 hour. If it is in the refrigerator, pre-mixed formula (also called ready-to-feed formula) that is opened must be thrown out after 48 hours. Formula that you mixed must be thrown out after 24 hours. Mistake #4: Re-using leftover formula.
I just take one of the cartons out but not sure if that's really the most economic option in the long run. I'm just so confused about how long formula can be kept after use and how long those cartons realistically can be open for. Cow & Gate says 24 hours in the fridge, whereas Aptamil says 2 hours in the fridge. Cow & Gate gave LO horrible diarrhoea so I want to stick with Aptamil.