Childhood Diseases

Posted by: karen | 2011/09/12


expressed breastmilk sour after 24hrs

I''m finding that when I express I have 2 use that milk the same day as by the next day it smells sour even though it''''s kept in the fridge. What could the reason 4 this be as my understanding is that breastmilk can be stored in a fridge for up to 3 days?

Expert's Reply



This is unusual as breastmilk should be able to be stored in a fridge for up to 8 days. Your breastmilk must be transferred to the fridge immediately after expressing and should be stored at the back of the fridge and not in the door of the fridge.

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user comments


Posted by: p urple | 2011/09/12


Breast milk can usually be kept for 3 - 8 days in the fridge depending on how long it was out of the fridge for before you store it.

Are you storing it in the door or at the back of the fridge?

Is it very hot where you are? Are you keeping the fridge in a cooler bag with an ice pack before you get home or is it left out. Generally, depending on how hot the day is, milk should be able to go around 3 hours without being kept cool and 10 - 24 hours in a cooler box with an ice pack.

Some milk smells "  soapy"  , this is distinct from an "  off"  smell though. The soapy milk is fine, some women''''s milk just smells that way.

I would suggest that you contact the La Leche League for some help with this. Their web site, although international does list local South African leaders contact details, so you can contact someone in your area.

In the interim, you could express milk and freeze immediately. Some of the beneficial properties are lost this way, but it is still better than formula.

Also, just check that hte milk is not stored next to onion or anything very strong smelling int he fridge, as the odour can pass into the milk making it smell strange.

Have you been eating anything particularly strong smelling like asparagus. This won''''t affect your milk in any way, but could leave it with a funny smell that might make you think its gone off.

Remember that even though the milk separates when standing, it is not off, just swirl it gently and it will mix together again. Also, milk comes in a variety of colours depending on what you have been eatring and drinking, though the usual colour is with a bluish tinge. When milk has been standing it can look quite watery with flecks in it and then have a layer of cream on top prompting you to sniff it, when its perfectly normal for it to look like that - cows milk would too, but it gets homogenised (whatever that is) to stop it from doing that.

I haven''''t actually smelled my own milk so don''''t know what it should smell like. You should be able to trust that if your milk has been kept in the fridge that it is not off until at least 3 days have passed.

If you do get a definitive answer on this, please let us know. I sincerely hope your milk is not going off in such a short time.

Reply to p urple
Posted by: mom | 2011/09/12

Breastmilk can be stored for 24 hours in the fridge.

Reply to mom
Posted by: Racoon | 2011/09/12

Is your fridge colder that 5 degrees Celcius? that would be the most important. And are the milk containers sterilized by boiling for 5 minutes or Milton before use?

Reply to Racoon

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