How Long Is Breast Milk Good For When Refrigerated?

Understanding the proper storage of breast milk can be crucial for breastfeeding parents who need to ensure their babies get the best nutrition possible. Here's a comprehensive guide about how long breast milk can be safely stored in the refrigerator.

Proper Storage of Breast Milk

Why Proper Storage Is Important

Ensuring that breast milk is stored properly helps to maintain its nutritional and immunological quality. Improper storage can lead to spoilage, which poses a risk to the infant's health.

Storage Guidelines in Refrigerators

The optimal temperature for storing breast milk in a refrigerator is 4°C (39°F) or colder. Follow these guidelines to ensure longevity and quality of the milk:

  • Freshly Expressed Breast Milk:

    • Can be stored in the refrigerator for up to 4 days.
    • Store in the back of the fridge where the temperature is most consistent.
  • Previously Frozen, Thawed in Refrigerator Milk:

    • Should be used within 24 hours after thawing.
    • Do not refreeze thawed breast milk.
  • Breast Milk Left Over from a Feeding:

    • Can be used for future feedings only if at room temperature for less than 2 hours.

Breast Milk Storage Duration Chart

Type of Breast Milk Storage Duration in Refrigerator
Freshly expressed Up to 4 days
Thawed, previously frozen Up to 24 hours
Left over from feeding (room temp <2h) Reuse if within the above conditions

Tips for Storing Breast Milk

Containers to Use

  • Appropriate Containers: Use clean, BPA-free bottles or storage bags that are specifically designed for breast milk.
  • Label Clearly: Always label every container with the date it was expressed to track storage duration easily.

Best Practices for Refrigerating

  • Consistent Temperature Control: Ensure your refrigerator maintains a consistent temperature. Avoid frequent opening of the fridge, which could lead to temperature fluctuations.
  • Avoid the Door: Do not store breast milk in the door compartments, as this area experiences the most temperature variation.

Identifying Spoiled Breast Milk

Signs of Spoilage

Even when stored properly, it is essential to check breast milk for spoilage before feeding:

  • Smell Test: Spoiled milk may have a sour or rancid odor.
  • Appearance: Milk separation is normal; gently swirl (not shake) to combine layers. However, if it remains chunky or has an unusual color, discard it.

Additional Notes on Safety

While expressed and stored milk provides convenience, ensure nothing compromises its nutrient profile and safety. If you suspect breast milk might be spoiled accidentally at any point—due to a power outage or malfunctioning fridge—err on the side of caution and do not use it.

By adhering to these refrigeration guidelines, parents can ensure their babies receive all the benefits of breast milk. Proper storage not only preserves its quality but also guards against potential health risks associated with consuming spoiled milk. Always ensure proper hygiene during the expression and storage process.