Thanks arg! Kade is just over 6 months and there was only about 35ml expressed so it isn't a tradgedy if I need to throw it out but obviously would prefer not to waste any at all if I can help it.
I know I should have sterilised in between but was the usual case of being in a hurry so just popped it straight in the fridge.

ops:
Do you think I should throw it just in case?