How long can you store breast milk in room temperature and in refrigerator?

Room temperature – Freshly expressed milk can be kept at room temperature for up to 4 hours. Refrigerator – Breast milk can be kept at the back of the fridge for up to 4 days. If you’re not going to use refrigerated breast milk within 4 days of pumping, freeze it right after pumping. You can read more here: https://sg.theasianparent.com/how-to-warm-breast-milk-from-fridge