ELI5 How does breast milk not get sour in breasts?

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My wife breastfeeds our newborn, and after (inadvertently) leaving milk out on the counter for 2 hours, I got to wonder: how is it that she can not feed/pump for 6 hours while our child sleeps, and still have good milk? Body temp is 37°C and room temp is around 20°C.

In: Biology

5 Answers

Anonymous 0 Comments

Because breast milk isn’t stored in the breast like some kind of tank, they’re secreted on demand, and usually there’s a baby sucking every few hours anyway, otherwise the mother stops producing milk

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