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.
Answers. Relevance. Rating Newest Oldest. Best Answer: You can keep it in the fridge for 24 hours, but cool it under the cold tap before you put it in the fridge. As another tip, I keep a few of the cartons of ready made formula in the cupboard (you can buy them in the supermarket, all of the major brands have them).ou can keep premixed formula in the fridge for up to, but not reccomended for longer than, three days.