Breastmilk at different times of the day should not be stored together and care should be taken in how it is stored. Normally, breastmilk from different times of the day should not be mixed together to avoid bacterial infection or spoilage. Normally, breastmilk can be stored at room temperature for 2-4 hours, at 4℃ for 48 hours and frozen for 6 months. If breastmilk from different times of the day is put together, it may spoil earlier and is not suitable for drinking. Therefore it is better not to put them together. Generally breastmilk should be given to the baby within 24 hours to avoid adverse effect on the baby’s health. Stored breastmilk should be heated up and given to the baby to drink, and the temperature should not be too hot or too cold. It is recommended that mothers try to store breastmilk separately for different periods of time, so as to ensure that part of the breastmilk can be preserved for a longer period of time to ensure the health of the baby.