Introduction
Breast milk is a living fluid rich in nutrients and antibodies. Safe handling ensures milk remains fresh and free from contamination. Even in low-resource settings, simple, practical steps can help mothers store and use milk safely for their babies.
1. Collection Guidelines
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Wash hands with soap and water before expressing.
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Use clean containers:
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Glass jars with tight lids, food-grade plastic containers, or clean cups.
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If possible, avoid bottles with BPA.
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Do not touch inside of containers or lids.
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Express directly into container if possible to reduce contamination.
2. Labeling Guidelines
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Always label container with:
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Baby’s name (if in shared facility).
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Date and time milk was expressed.
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Use waterproof marker or tape.
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Store oldest milk first (FIFO: First In, First Out).
3. Storage Guidelines
General Rules (WHO/CDC)
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At room temperature (≤25°C/77°F): up to 4 hours.
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Refrigerator (≤4°C/39°F): up to 4 days.
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Freezer (-18°C/0°F or colder): 6 months best, 12 months acceptable.
Low-Resource Options
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Cooler with ice packs: Keeps milk safe for 24 hours.
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Clay pot cooler (“zeer pot”): Place container in a covered clay pot with wet sand between — evaporation keeps it cool.
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Shaded area with wet cloth wrap: Provides some cooling effect if refrigeration unavailable (short-term only).
4. Thawing Guidelines
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Best method: Move container from freezer to refrigerator (overnight).
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Faster method: Place sealed container in bowl of lukewarm water.
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Do NOT:
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Use boiling water.
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Microwave (destroys nutrients, causes hot spots).
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5. Warming Guidelines
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Warm by placing container in bowl of warm water for a few minutes.
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Gently swirl (not shake) to mix separated fat.
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Test milk temperature by placing a drop on the inside of the wrist (should feel lukewarm, not hot).
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If baby is happy with cold milk — warming is not required.
6. Common Mistakes to Avoid
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Refreezing thawed milk.
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Mixing freshly expressed warm milk with frozen milk (cool it first).
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Leaving milk out for long periods in hot climates.
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Heating directly on stove or with microwave.
End of Lecture Quiz
Q1. What is the safest way to thaw frozen breast milk?
A. In boiling water
B. In the microwave
C. In the refrigerator or bowl of lukewarm water
D. On the windowsill in the sun
Answer: C. In the refrigerator or bowl of lukewarm water
Rationale: These methods preserve nutrients and avoid dangerous hot spots.
Q2. True or False: It is safe to refreeze breast milk once thawed.
Answer: False
Rationale: Refreezing increases risk of bacterial growth and nutrient loss.
Q3. Which low-resource option can safely keep milk cool?
A. Clay pot cooler (zeer pot)
B. Leaving it on a windowsill
C. Wrapping in dry cloth only
D. Heating it every few hours
Answer: A. Clay pot cooler (zeer pot)
Rationale: Evaporative cooling from wet sand helps preserve milk safely when refrigerators are unavailable.
Curated Online Resources
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WHO — Expressing, storing, and handling breast milk
https://www.who.int/publications/i/item/9789240038345 -
CDC — Proper Storage and Preparation of Breast Milk
https://www.cdc.gov/breastfeeding/recommendations/handling_breastmilk.htm -
La Leche League — Storing Human Milk
https://www.llli.org/breastfeeding-info/storing-milk/ -
UNICEF — Breast Milk Storage in Low-Resource Settings
https://www.unicef.org/nutrition/index_24824.html -
KellyMom — Milk Storage Guidelines
https://kellymom.com/bf/pumpingmoms/milkstorage/milkstorage/
Key Takeaways
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Safe milk handling prevents contamination and spoilage.
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Always wash hands, use clean containers, and label clearly.
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Storage depends on temperature — short at room temp, longer in fridge/freezer.
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Low-resource solutions like cooler boxes or clay pots can extend storage life.
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Thaw safely in fridge or lukewarm water, never refreeze.
Call to Action
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Mothers: Learn simple storage methods that fit your home environment.
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Health workers: Teach mothers both modern and low-resource safe storage options.
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Communities: Support working and rural mothers with safe milk storage spaces and education.