Safe handling steps for expressed milk
Proper storage preserves nutrients and reduces infection risk. Start with clean hands and sterilized or thoroughly washed pump parts and containers. Use food-grade, BPA-free bottles or breast milk storage bags labeled with date and time.
Storage guidelines (general safe-time frames):
- Room temperature (up to 77°F / 25°C): use within 4–6 hours.
- Refrigerator (at 40°F / 4°C): store up to 4 days; 5–8 days is acceptable for very clean pumping routines but check pediatric guidance.
- Freezer: store up to 6 months for best quality (up to 12 months is acceptable in a deep freezer).
Thawing and using stored milk
- Thaw frozen milk in the refrigerator overnight or under warm running water.
- Gently swirl to mix separated fat — avoid vigorous shaking.
- Use thawed milk within 24 hours and never refreeze it.
- Warm milk by placing the container in warm water; avoid microwaving, which creates hot spots and can damage nutrients.
Label containers with date and never mix fresh milk with older milk unless the older is refrigerated and not frozen. If you notice an unusual smell or appearance, consult a lactation consultant or healthcare provider, but slight changes in smell are often normal due to fat breakdown.