How long can you store your breast milk?

Freshly expressed breast milk can be stored in the back of the refrigerator (39 degrees Fahrenheit or colder) for up to 3 days or 5 days for very clean expressed milk. It can be stored in the back of a freezer (0 degrees Fahrenheit or colder) up to 3 to 6 months or up to 9 months for very clean expressed milk. And it can be stored in the back of a deep freezer (-4 degrees Fahrenheit or colder) for up to 6 months or up to 12 months for very clean expressed milk.

If your breast milk is stored in a cooler with ice packs, it can last up to 24 hours. If it is at room temperature (less than 77 degrees Fahrenheit), it can last up to 4 hours or up to 6 to 8 hours for very clean expressed milk. Throw out any leftover milk within 1 to 2 hours after the baby is finished feeding.