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What is scalding breast milk?

Pumping glossary; plain language, no fluff · Updated July 2026

Quick answer: Scalding means heating fresh milk to about 180°F, tiny bubbles at the pan's edge, not a boil, then cooling it fast, to deactivate the lipase enzyme before freezing so stored milk never turns soapy-tasting.

In practice

It is the standard fix for high-lipase milk when babies refuse the taste. The cost is real but modest: some heat-sensitive immune components are reduced, which is why scalding is for confirmed refusers, not routine practice. Scald fresh, never already-stored, milk.

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In Milk First

Every bag and bottle you add gets its best-by and use-by dates computed automatically from these exact rules, the oldest safe milk sits on top of the Use next queue, and a warning arrives the day before anything expires, while you can still act.

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