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.
1 Use refrigerated bottles of concentrated or ready-to-feed infant formula within 48 hours of preparation. 2  Use refrigerated bottles of powdered infant formula within 24 hours of preparation. 3  Open cans of concentrated or ready made infant formula should be covered, refrigerated, and used within 48 hours.