I wanted to know. Last night i expressed 125 ml of milk which took me ages!!! When i tried to feed thomas he did drink about 10 ml and then did not want the bottle anymore and took the breast. the milk stayed in room temp for about 40 minutes then i put it back to the fridge. Can i still use it or do i need to throw it? It is just it took me so long, seems such a waste to waste it!!!