Breast Milk Storage — Latest Guidelines 2026

🍼 Breast Milk Storage — Latest Guidelines 2026

For healthy, full-term infants:

Storage condition	Recommended duration
Room temperature ≤25°C	Up to 4 hours
Refrigerator ≤4°C	Up to 4 days
Freezer ≤−18°C	6 months best; up to 12 months acceptable
Insulated cooler + frozen ice packs	Up to 24 hours

❄️ Thawed & Warmed Milk

• Milk thawed in the refrigerator: use within 24 hours.
• Once thawed, do not refreeze.
• After warming or bringing to room temperature: use within 2 hours.
• Leftover milk after a feeding: use within 2 hours, then discard.

⚠️ Important Safety Points

• Do not microwave breast milk.
• Do not heat breast milk directly on the stove.
• Freshly expressed warm milk should be cooled before combining with already chilled milk.
• Store milk toward the back of the refrigerator/freezer, not in the door.
• Label expressed milk with the date and use older milk first (FIFO).

🧠 Quick Recall

4 Hours → 4 Days → 6 Months

Room: 4 hours  |  Refrigerator: 4 days  |  Freezer: 6 months best

🌍 WHO 2025 Update

The WHO 2025 Pocket Book states that expressed breast milk can be stored for up to 8 hours at room temperature, 4 days in a refrigerator, and 6 months in a freezer.

Exam Tip: Always follow the organization specifically mentioned in the question. CDC and WHO recommendations should not be mixed.

Source: CDC Breast Milk Storage and Preparation Guidelines, updated August 14, 2026; WHO Pocket Book 2025.

Exam Focus: NORCET • AIIMS • RRB Nursing • ESIC • Pediatrics