Realistically- how long can you keep formula bottles in the fridge?

I use powder.
I know they say you can make a batch and refrigerate for up to 24 hours but does anyone keep them longer?

I made a bunch of bottles for daycare last night.. they have been in my fridge and daycare's fridge all day.
She didn't use one of them and I already have the night's bottles made up.

So do you think I can bring the left over daycare one back to daycare tomorrow? Or should I try to use it by tonight or toss it?

Message edited 8/31/2010 5:57:51 PM.

Re: Realistically- how long can you keep formula bottles in the fridge?

Im pretty sure you can keep them for 48 hrs. all the RTF's i used said once opened, 48 hours. and i believe on the good start powder i use it says that as well.

I make 10 bottles at a time and use them within 48 hrs. its never been a problem. If its refrigerated, i dont see why not.