How long can breast milk be safely stored at room temperature?
Last updated on April 1, 2026
How long breast milk can be stored at room temperature is dependent on the temperature of the room, but 4-8 hours is generally considered safe. At very high temperatures (like 100°) less than 4 hours is advised, as bacteria multiply faster in the warmth. The CDC guidelines align with this more conservative timeline, suggesting 4 hours as a max. Storage time is considerably longer in cooler temperatures, including up to 4 days in the refrigerator.
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