Lansinoh bags- can you add milk to them throughout the day??

[needaplan]

When feeding, I sometimes use breast shells to collect milk from the other side. I can collect about an oz or so at each feed. Seems extravagant to use a lansinoh bag for 1oz so could I top up the bag throughout the day or is it dodgy because of mixing different temperatures of milk?

Well I do that when expressing into a cup / bottle, if I don't get enough for a full feed I stick the whole thing in the fridge and come back to it later. I don't think it's a problem, as long as you use it within 24 of the first lot.

24 hours, that should have said

AFAIK you are not supposed to mix fresh milk and chilled milk. prob be better to pour the milk from the shell into a clean bottle, chill it then add it to the bag.

thanks katy and daisybo- still not sure about this. I have been doing this for a while and frozen lots of bags but a bit scared to use it now! Anyone else have opinions on this?

I collected milk over 48 hours then froze it. I kept a bottle in the fridge and expressed into a new bottle. Once the second bottle of EBM was chilled I added it to the first.

It is perfectly OK to add milk together but it is best done at same temperature.

i would collect into one bottle then the next time collect into a different bottle and when it's chilled add to the 1st bottle. clean the 2nd bottle and just keep collecting into this, waiting until it's chilled then pour into the 1st. when you have enough to fill a bag pour it all into the bag. it's fine as long as you mix them at the same temperature and i'd probably freeze within 12 hours myself but somebody on here might know a better time to freeze it within.

i added it over a day put all in freezer and just added warm milk to frozen - breast fed 5 though - no tummy troubes!

Studies have shown that breastmilk is very resilient to bacteria and a lot of the advice on expressing seems to just adapt the rules for formula which grows bacteria very quickly.

You can keep breastmilk at room temperature for 4-6 hours so I can't see how adding room temperature milk to refrigerated milk could be a risk.

Breast milk does have anti infective properties but when you are planning to freeze it, it is best to reduce any chance of encouraging any type of bacterial grwoth. A warm/cold mix is not good when planning to freeze IMO - you can contaminate milk during the expressing process.