Store your milk in containers, each containing the volume of milk required for 1 feed. For those you will use within 24hrs, keep in the fridge. For those that will not be used, store in freezer immediately after pumping (can use breastmilk storage bags). Each time you want to feed, just warm up one portion of milk, so the rest doesn’t go bad. I usually label the date so I know when it’ll expire
Ying Hua